Home / 231,350.61-319,261.65-129,374.91

Finding the Fourth Proportional to 231,350.61, 319,261.65 and 129,374.91

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Solution

The fourth proportional to 231,350.61, 319,261.65 and 129,374.91 is: 178,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,350.61 : 319,261.65 = 129,374.91 : x
  2. Step 2: Convert to fraction form
    231,350.61/319,261.65 = 129,374.91/x
  3. Step 3: Cross multiply
    231,350.61x = 319,261.65 × 129,374.91
  4. Step 4: Simplify right side
    231,350.61x = 41,304,447,235.20
  5. Step 5: Solve for x
    x = 41,304,447,235.20/231,350.61
  6. Step 6: Final answer
    x = 178,536.15

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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.