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Finding the Fourth Proportional to 626.28, 939.14 and 333.72

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Solution

The fourth proportional to 626.28, 939.14 and 333.72 is: 500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.28 : 939.14 = 333.72 : x
  2. Step 2: Convert to fraction form
    626.28/939.14 = 333.72/x
  3. Step 3: Cross multiply
    626.28x = 939.14 × 333.72
  4. Step 4: Simplify right side
    626.28x = 313,411.26
  5. Step 5: Solve for x
    x = 313,411.26/626.28
  6. Step 6: Final answer
    x = 500.43

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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.