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Finding the Fourth Proportional to 626.30, 938.72 and 337.13

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Solution

The fourth proportional to 626.30, 938.72 and 337.13 is: 505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.30 : 938.72 = 337.13 : x
  2. Step 2: Convert to fraction form
    626.30/938.72 = 337.13/x
  3. Step 3: Cross multiply
    626.30x = 938.72 × 337.13
  4. Step 4: Simplify right side
    626.30x = 316,466.82
  5. Step 5: Solve for x
    x = 316,466.82/626.30
  6. Step 6: Final answer
    x = 505.30

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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.