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Ratio and Proportion II Summary
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- Ratio is the numerical relationship between two quantities of the same kind. The first quantity is called the antecedent and the second quantity is called the consequent.
- By performing simple operations on ratios, we get compounded ratio, duplicate ratio, triplicate ratio, sub-duplicate ratio and sub-triplicate ratio.
- If two ratios are equal, we get four quantities in proportion.
- If three quantities are in continued proportion, the second quantity is called the mean proportion.
- Important results in proportions are: Invertendo, Alternendo, Componendo, Dividendo and Componendo and Dividendo.
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