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Finding the Fourth Proportional to 658.32, 908.16 and 547.38

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Solution

The fourth proportional to 658.32, 908.16 and 547.38 is: 755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.32 : 908.16 = 547.38 : x
  2. Step 2: Convert to fraction form
    658.32/908.16 = 547.38/x
  3. Step 3: Cross multiply
    658.32x = 908.16 × 547.38
  4. Step 4: Simplify right side
    658.32x = 497,108.62
  5. Step 5: Solve for x
    x = 497,108.62/658.32
  6. Step 6: Final answer
    x = 755.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.