Home / 231,399.44-319,324.84-129,425.10

Finding the Fourth Proportional to 231,399.44, 319,324.84 and 129,425.10

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Solution

The fourth proportional to 231,399.44, 319,324.84 and 129,425.10 is: 178,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,399.44 : 319,324.84 = 129,425.10 : x
  2. Step 2: Convert to fraction form
    231,399.44/319,324.84 = 129,425.10/x
  3. Step 3: Cross multiply
    231,399.44x = 319,324.84 × 129,425.10
  4. Step 4: Simplify right side
    231,399.44x = 41,328,649,349.48
  5. Step 5: Solve for x
    x = 41,328,649,349.48/231,399.44
  6. Step 6: Final answer
    x = 178,603.07

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1.5x scale

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.