Home / 231,277.83-319,163.94-129,306.93

Finding the Fourth Proportional to 231,277.83, 319,163.94 and 129,306.93

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Solution

The fourth proportional to 231,277.83, 319,163.94 and 129,306.93 is: 178,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,277.83 : 319,163.94 = 129,306.93 : x
  2. Step 2: Convert to fraction form
    231,277.83/319,163.94 = 129,306.93/x
  3. Step 3: Cross multiply
    231,277.83x = 319,163.94 × 129,306.93
  4. Step 4: Simplify right side
    231,277.83x = 41,270,109,248.10
  5. Step 5: Solve for x
    x = 41,270,109,248.10/231,277.83
  6. Step 6: Final answer
    x = 178,443.86

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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.