Home / 327,761.25-491,642.15-187,421.46

Finding the Fourth Proportional to 327,761.25, 491,642.15 and 187,421.46

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Solution

The fourth proportional to 327,761.25, 491,642.15 and 187,421.46 is: 281,132.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,761.25 : 491,642.15 = 187,421.46 : x
  2. Step 2: Convert to fraction form
    327,761.25/491,642.15 = 187,421.46/x
  3. Step 3: Cross multiply
    327,761.25x = 491,642.15 × 187,421.46
  4. Step 4: Simplify right side
    327,761.25x = 92,144,288,613.43
  5. Step 5: Solve for x
    x = 92,144,288,613.43/327,761.25
  6. Step 6: Final answer
    x = 281,132.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.