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Finding the Fourth Proportional to 287,451.89, 431,472.06 and 237,372.42

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Solution

The fourth proportional to 287,451.89, 431,472.06 and 237,372.42 is: 356,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,451.89 : 431,472.06 = 237,372.42 : x
  2. Step 2: Convert to fraction form
    287,451.89/431,472.06 = 237,372.42/x
  3. Step 3: Cross multiply
    287,451.89x = 431,472.06 × 237,372.42
  4. Step 4: Simplify right side
    287,451.89x = 102,419,567,044.59
  5. Step 5: Solve for x
    x = 102,419,567,044.59/287,451.89
  6. Step 6: Final answer
    x = 356,301.60

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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.