1000:х=1500:300 плизз

Question

1000:х=1500:300 плизз

Answer 1

Стандартная пропорция:
1000 * 300 = 1500 * x
5x = 1000
x = 200

Answer 2

1000:х=1500:300
1000:х=5
х=1000:5
х=200
проверка
1000:200=1500:300
5=5

Comments

1000*300/1500=х