Finding the Fourth Proportional to 385.52, 576.99 and 254.97
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Solution
The fourth proportional to 385.52, 576.99 and 254.97 is: 381.61
Step by Step Solution
- Step 1: Write the proportion equation
385.52 : 576.99 = 254.97 : x - Step 2: Convert to fraction form
385.52/576.99 = 254.97/x - Step 3: Cross multiply
385.52x = 576.99 × 254.97 - Step 4: Simplify right side
385.52x = 147,115.14 - Step 5: Solve for x
x = 147,115.14/385.52 - Step 6: Final answer
x = 381.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.