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Finding the Fourth Proportional to 375,411.48, 517,652.70 and 239,229.71

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Solution

The fourth proportional to 375,411.48, 517,652.70 and 239,229.71 is: 329,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,411.48 : 517,652.70 = 239,229.71 : x
  2. Step 2: Convert to fraction form
    375,411.48/517,652.70 = 239,229.71/x
  3. Step 3: Cross multiply
    375,411.48x = 517,652.70 × 239,229.71
  4. Step 4: Simplify right side
    375,411.48x = 123,837,902,713.45
  5. Step 5: Solve for x
    x = 123,837,902,713.45/375,411.48
  6. Step 6: Final answer
    x = 329,872.44

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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.