Home / 218,320.10-327,461.39-132,908.78

Finding the Fourth Proportional to 218,320.10, 327,461.39 and 132,908.78

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Solution

The fourth proportional to 218,320.10, 327,461.39 and 132,908.78 is: 199,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,320.10 : 327,461.39 = 132,908.78 : x
  2. Step 2: Convert to fraction form
    218,320.10/327,461.39 = 132,908.78/x
  3. Step 3: Cross multiply
    218,320.10x = 327,461.39 × 132,908.78
  4. Step 4: Simplify right side
    218,320.10x = 43,522,491,540.15
  5. Step 5: Solve for x
    x = 43,522,491,540.15/218,320.10
  6. Step 6: Final answer
    x = 199,351.74

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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.