Alan solved the proportion x / 200 = 8 / 25 as shown. x / 200 = 8 / 25 .
(8) (x) = (25) (200).
8 x = 5,000.
8 x /8 = 5,000/ 8
X = 625.

What is Alan’s error?
He got the wrong product when he multiplied 25 by 200.
He got the wrong quotient when he divided 5,000 by 8.
He mixed up the positions of 8 and 25 in the equation (8) (x) = (25) (200). He mixed up the positions of 8 and 200 in the equation (8) (x) = (25) (200).