Home / 231,444.36-319,378.14-129,452.16

Finding the Fourth Proportional to 231,444.36, 319,378.14 and 129,452.16

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Solution

The fourth proportional to 231,444.36, 319,378.14 and 129,452.16 is: 178,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,444.36 : 319,378.14 = 129,452.16 : x
  2. Step 2: Convert to fraction form
    231,444.36/319,378.14 = 129,452.16/x
  3. Step 3: Cross multiply
    231,444.36x = 319,378.14 × 129,452.16
  4. Step 4: Simplify right side
    231,444.36x = 41,344,190,079.78
  5. Step 5: Solve for x
    x = 41,344,190,079.78/231,444.36
  6. Step 6: Final answer
    x = 178,635.55

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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.