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Finding the Fourth Proportional to 439,062.78, 658,113.09 and 225,841.92

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Solution

The fourth proportional to 439,062.78, 658,113.09 and 225,841.92 is: 338,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,062.78 : 658,113.09 = 225,841.92 : x
  2. Step 2: Convert to fraction form
    439,062.78/658,113.09 = 225,841.92/x
  3. Step 3: Cross multiply
    439,062.78x = 658,113.09 × 225,841.92
  4. Step 4: Simplify right side
    439,062.78x = 148,629,523,822.73
  5. Step 5: Solve for x
    x = 148,629,523,822.73/439,062.78
  6. Step 6: Final answer
    x = 338,515.43

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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.