Home / 238,540.25-329,188.10-129,644.61

Finding the Fourth Proportional to 238,540.25, 329,188.10 and 129,644.61

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Solution

The fourth proportional to 238,540.25, 329,188.10 and 129,644.61 is: 178,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,540.25 : 329,188.10 = 129,644.61 : x
  2. Step 2: Convert to fraction form
    238,540.25/329,188.10 = 129,644.61/x
  3. Step 3: Cross multiply
    238,540.25x = 329,188.10 × 129,644.61
  4. Step 4: Simplify right side
    238,540.25x = 42,677,462,192.92
  5. Step 5: Solve for x
    x = 42,677,462,192.92/238,540.25
  6. Step 6: Final answer
    x = 178,910.95

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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.