Question

Second and third terms are called

Answer 1

Answer: Means

Step-by-step explanation:

Assuming that you are talking about ratios, the second and third terms are called means and the first and fourth terms are called extremes.

Eg:- 1 : 2 :: 4 : 8

Here, 1 and 8 are the extreme terms and 2 and 4 are the mean terms. Also, just for extra information, the product of the mean terms is equal to the product of the extreme terms.

Hope it helps!