Home / 327,708.62-491,753.92-138,157.34

Finding the Fourth Proportional to 327,708.62, 491,753.92 and 138,157.34

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Solution

The fourth proportional to 327,708.62, 491,753.92 and 138,157.34 is: 207,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,708.62 : 491,753.92 = 138,157.34 : x
  2. Step 2: Convert to fraction form
    327,708.62/491,753.92 = 138,157.34/x
  3. Step 3: Cross multiply
    327,708.62x = 491,753.92 × 138,157.34
  4. Step 4: Simplify right side
    327,708.62x = 67,939,413,521.77
  5. Step 5: Solve for x
    x = 67,939,413,521.77/327,708.62
  6. Step 6: Final answer
    x = 207,316.53

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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.