Home / 231,259.26-319,113.29-129,273.98

Finding the Fourth Proportional to 231,259.26, 319,113.29 and 129,273.98

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Solution

The fourth proportional to 231,259.26, 319,113.29 and 129,273.98 is: 178,384.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,259.26 : 319,113.29 = 129,273.98 : x
  2. Step 2: Convert to fraction form
    231,259.26/319,113.29 = 129,273.98/x
  3. Step 3: Cross multiply
    231,259.26x = 319,113.29 × 129,273.98
  4. Step 4: Simplify right side
    231,259.26x = 41,253,046,190.16
  5. Step 5: Solve for x
    x = 41,253,046,190.16/231,259.26
  6. Step 6: Final answer
    x = 178,384.41

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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.