Finding the Fourth Proportional to 252.68, 378.97 and 70.09
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Solution
The fourth proportional to 252.68, 378.97 and 70.09 is: 105.12
Step by Step Solution
- Step 1: Write the proportion equation
252.68 : 378.97 = 70.09 : x - Step 2: Convert to fraction form
252.68/378.97 = 70.09/x - Step 3: Cross multiply
252.68x = 378.97 × 70.09 - Step 4: Simplify right side
252.68x = 26,561.99 - Step 5: Solve for x
x = 26,561.99/252.68 - Step 6: Final answer
x = 105.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.