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Finding the Fourth Proportional to 527.31, 726.17 and 516.54

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Solution

The fourth proportional to 527.31, 726.17 and 516.54 is: 711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.31 : 726.17 = 516.54 : x
  2. Step 2: Convert to fraction form
    527.31/726.17 = 516.54/x
  3. Step 3: Cross multiply
    527.31x = 726.17 × 516.54
  4. Step 4: Simplify right side
    527.31x = 375,095.99
  5. Step 5: Solve for x
    x = 375,095.99/527.31
  6. Step 6: Final answer
    x = 711.34

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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.