Home / 231,340.60-319,250.46-129,369.88

Finding the Fourth Proportional to 231,340.60, 319,250.46 and 129,369.88

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Solution

The fourth proportional to 231,340.60, 319,250.46 and 129,369.88 is: 178,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,340.60 : 319,250.46 = 129,369.88 : x
  2. Step 2: Convert to fraction form
    231,340.60/319,250.46 = 129,369.88/x
  3. Step 3: Cross multiply
    231,340.60x = 319,250.46 × 129,369.88
  4. Step 4: Simplify right side
    231,340.60x = 41,301,393,700.14
  5. Step 5: Solve for x
    x = 41,301,393,700.14/231,340.60
  6. Step 6: Final answer
    x = 178,530.68

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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.