Home / 231,398.44-319,323.46-129,424.10

Finding the Fourth Proportional to 231,398.44, 319,323.46 and 129,424.10

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Solution

The fourth proportional to 231,398.44, 319,323.46 and 129,424.10 is: 178,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,398.44 : 319,323.46 = 129,424.10 : x
  2. Step 2: Convert to fraction form
    231,398.44/319,323.46 = 129,424.10/x
  3. Step 3: Cross multiply
    231,398.44x = 319,323.46 × 129,424.10
  4. Step 4: Simplify right side
    231,398.44x = 41,328,151,419.39
  5. Step 5: Solve for x
    x = 41,328,151,419.39/231,398.44
  6. Step 6: Final answer
    x = 178,601.69

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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.