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Finding the Fourth Proportional to 625.17, 938.03 and 351.75

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Solution

The fourth proportional to 625.17, 938.03 and 351.75 is: 527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.17 : 938.03 = 351.75 : x
  2. Step 2: Convert to fraction form
    625.17/938.03 = 351.75/x
  3. Step 3: Cross multiply
    625.17x = 938.03 × 351.75
  4. Step 4: Simplify right side
    625.17x = 329,950.29
  5. Step 5: Solve for x
    x = 329,950.29/625.17
  6. Step 6: Final answer
    x = 527.78

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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.