The relation which one quantity or magnitude has to another of the same kind. It is expressed by the quotient of the division of the first by the second; thus, the ratio of 3 to 6 is expressed by / or /; of a to b by a/b; or (less commonly) the second term is made the dividend; as, a:b = b/a.
Hence, fixed relation of number, quantity, or degree; rate; proportion; as, the ratio of representation in Congress.
More related articles
Oxidizable carbon ratio dating
Oxidizable carbon ratio dating is a method of dating in archaeology and earth science that can be used to derive or estimate the age of soil and sediment samples up to 35,000 years old. The method is experimental, and it is not as widely used in archaeology as other chronometric methods such as radiocarbon dating.
Facial width to height ratio
Facial width to height ratio (fWHR) is a measure derived from archaeological skull measurements. fWHR may be linked with adolescent testosterone, and has been proposed as: a predictor of aggression, cause of death by violence, and also with CEO success probability. While most studies have found some significance some have found little correlation.
Real net output ratio
The Real Net Output Ratio (or Vertical Range of Manufacture) describes in a value chain the fraction of the internal (company specific) production on the total production value of one company. The total production value of a company consists of internal production plus the sum of externally produced goods and services.
Golden ratio poetry
Golden ratio poetry is an experimental poetry form similar to the Fib and Cadae. Golden ratio poetry is based on the Golden ratio . Collection of poetry Golden Divine authored by Radoslav Rochallyi is most probably the first collection of poetry of its kind in the world that uses this form. This means that the creation is to see a strict structure based on the golden number 1.618033 ...
Incremental capital-output ratio
The Incremental Capital-Output Ratio (ICOR) is the ratio of investment to growth which is equal to the reciprocal of the marginal product of capital. The higher the ICOR, the lower the productivity of capital or the marginal efficiency of capital. The ICOR can be thought of as a measure of the inefficiency with which capital is used. In most countries the ICOR is in the neighborhood of 3. It is a topic discussed in economic growth. It can be expressed in the following formula, where K is capital output ratio, Y is output (GDP ), and I is net investment.
A carbon-to-nitrogen ratio (C/N ratio or C:N ratio) is a ratio of the mass of carbon to the mass of nitrogen in a substance. It can, amongst other things, be used in analysing sediments and compost. A useful application for C/N ratios is as a proxy for paleoclimate research, having different uses whether the sediment cores are terrestrial-based or marine-based. Carbon-to-nitrogen ratios are an indicator for nitrogen limitation of plants and other organisms and can identify whether molecules found in the sediment under study come from land-based or algal plants. Further, they can distinguish between different land-based plants, depending on the type of photosynthesis they undergo. Therefore, the C/N ratio serves as a tool for understanding the sources of sedimentary organic matter, which can lead to information about the ecology, climate, and ocean circulation at different times in Earth’s history.
Ratio decompression (usually referred to in abbreviated form as ratio deco) is a technique for calculating decompression schedules for scuba divers engaged in deep diving without using dive tables, decompression software or a dive computer. It is generally taught as part of the "DIR " philosophy of diving promoted by organisations such Global Underwater Explorers (GUE) Innerspace Explorers (ISE) and Unified Team Diving (UTD) at the advanced technical diving level. It is designed for decompression diving executed deeper than standard recreational diving depth limits using trimix as a "bottom mix" breathing gas.
The air-to-cloth ratio is the volumetric flow rate of air (m³/minute; SI m³/second ) flowing through a dust collector's inlet duct divided by the total cloth area (m²) in the filters. The result is expressed in units of velocity.
In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock. Stripping ratios are typically reduced to show the volume of waste removal required to extract one unit ton of ore, for example, 1.5:1 as opposed to 3:2.