Home / 231,343.28-319,126.20-159,760.88

Finding the Fourth Proportional to 231,343.28, 319,126.20 and 159,760.88

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Solution

The fourth proportional to 231,343.28, 319,126.20 and 159,760.88 is: 220,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,343.28 : 319,126.20 = 159,760.88 : x
  2. Step 2: Convert to fraction form
    231,343.28/319,126.20 = 159,760.88/x
  3. Step 3: Cross multiply
    231,343.28x = 319,126.20 × 159,760.88
  4. Step 4: Simplify right side
    231,343.28x = 50,983,882,543.06
  5. Step 5: Solve for x
    x = 50,983,882,543.06/231,343.28
  6. Step 6: Final answer
    x = 220,381.95

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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.