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Finding the Fourth Proportional to 502.53, 753.18 and 472.15

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Solution

The fourth proportional to 502.53, 753.18 and 472.15 is: 707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.53 : 753.18 = 472.15 : x
  2. Step 2: Convert to fraction form
    502.53/753.18 = 472.15/x
  3. Step 3: Cross multiply
    502.53x = 753.18 × 472.15
  4. Step 4: Simplify right side
    502.53x = 355,613.94
  5. Step 5: Solve for x
    x = 355,613.94/502.53
  6. Step 6: Final answer
    x = 707.65

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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.