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Finding the Fourth Proportional to 218,618.66, 327,187.31 and 134,432.15

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Solution

The fourth proportional to 218,618.66, 327,187.31 and 134,432.15 is: 201,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,618.66 : 327,187.31 = 134,432.15 : x
  2. Step 2: Convert to fraction form
    218,618.66/327,187.31 = 134,432.15/x
  3. Step 3: Cross multiply
    218,618.66x = 327,187.31 × 134,432.15
  4. Step 4: Simplify right side
    218,618.66x = 43,984,491,227.92
  5. Step 5: Solve for x
    x = 43,984,491,227.92/218,618.66
  6. Step 6: Final answer
    x = 201,192.76

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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.