Home / 231,862.88-319,982.76-129,882.38

Finding the Fourth Proportional to 231,862.88, 319,982.76 and 129,882.38

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Solution

The fourth proportional to 231,862.88, 319,982.76 and 129,882.38 is: 179,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,862.88 : 319,982.76 = 129,882.38 : x
  2. Step 2: Convert to fraction form
    231,862.88/319,982.76 = 129,882.38/x
  3. Step 3: Cross multiply
    231,862.88x = 319,982.76 × 129,882.38
  4. Step 4: Simplify right side
    231,862.88x = 41,560,122,427.77
  5. Step 5: Solve for x
    x = 41,560,122,427.77/231,862.88
  6. Step 6: Final answer
    x = 179,244.40

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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.