Home / 231,347.62-319,257.50-129,371.92

Finding the Fourth Proportional to 231,347.62, 319,257.50 and 129,371.92

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Solution

The fourth proportional to 231,347.62, 319,257.50 and 129,371.92 is: 178,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,347.62 : 319,257.50 = 129,371.92 : x
  2. Step 2: Convert to fraction form
    231,347.62/319,257.50 = 129,371.92/x
  3. Step 3: Cross multiply
    231,347.62x = 319,257.50 × 129,371.92
  4. Step 4: Simplify right side
    231,347.62x = 41,302,955,749.40
  5. Step 5: Solve for x
    x = 41,302,955,749.40/231,347.62
  6. Step 6: Final answer
    x = 178,532.01

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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.