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Finding the Fourth Proportional to 373,654.50, 515,876.49 and 239,751.78

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Solution

The fourth proportional to 373,654.50, 515,876.49 and 239,751.78 is: 331,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,654.50 : 515,876.49 = 239,751.78 : x
  2. Step 2: Convert to fraction form
    373,654.50/515,876.49 = 239,751.78/x
  3. Step 3: Cross multiply
    373,654.50x = 515,876.49 × 239,751.78
  4. Step 4: Simplify right side
    373,654.50x = 123,682,306,737.65
  5. Step 5: Solve for x
    x = 123,682,306,737.65/373,654.50
  6. Step 6: Final answer
    x = 331,007.14

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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.