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Finding the Fourth Proportional to 231,339.52, 319,245.92 and 125,355.52

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Solution

The fourth proportional to 231,339.52, 319,245.92 and 125,355.52 is: 172,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,339.52 : 319,245.92 = 125,355.52 : x
  2. Step 2: Convert to fraction form
    231,339.52/319,245.92 = 125,355.52/x
  3. Step 3: Cross multiply
    231,339.52x = 319,245.92 × 125,355.52
  4. Step 4: Simplify right side
    231,339.52x = 40,019,238,309.48
  5. Step 5: Solve for x
    x = 40,019,238,309.48/231,339.52
  6. Step 6: Final answer
    x = 172,989.20

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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.