Home / 231,335.20-319,119.48-140,718.88

Finding the Fourth Proportional to 231,335.20, 319,119.48 and 140,718.88

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Solution

The fourth proportional to 231,335.20, 319,119.48 and 140,718.88 is: 194,117.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,335.20 : 319,119.48 = 140,718.88 : x
  2. Step 2: Convert to fraction form
    231,335.20/319,119.48 = 140,718.88/x
  3. Step 3: Cross multiply
    231,335.20x = 319,119.48 × 140,718.88
  4. Step 4: Simplify right side
    231,335.20x = 44,906,135,811.78
  5. Step 5: Solve for x
    x = 44,906,135,811.78/231,335.20
  6. Step 6: Final answer
    x = 194,117.18

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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.