Finding the Fourth Proportional to 382.14, 572.97 and 138.62
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Solution
The fourth proportional to 382.14, 572.97 and 138.62 is: 207.84
Step by Step Solution
- Step 1: Write the proportion equation
382.14 : 572.97 = 138.62 : x - Step 2: Convert to fraction form
382.14/572.97 = 138.62/x - Step 3: Cross multiply
382.14x = 572.97 × 138.62 - Step 4: Simplify right side
382.14x = 79,425.10 - Step 5: Solve for x
x = 79,425.10/382.14 - Step 6: Final answer
x = 207.84
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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.