Continued Proportion | GAT Preparation | NTS Test Prep | NAT Prep | FTS Prep | HAT Test Preparation

Three numbers ‘a’, ‘b’ and ‘c’ are said to be continued proportion if a, b and c are in proportion.
Thus, if a, b and c are in continued-proportion, then
a,b,b,c are in proportion, that means
a : b : : b : c
⇒ Product of extremes = Product of means
⇒ a x c = b x b
⇒ a x c = b 2
Continued-proportion is also known as mean proportional .
If ‘b’ is a mean proportional between a and c then b^2 = ac.