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Finding the Fourth Proportional to 218,226.06, 327,339.09 and 68,489.46

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Solution

The fourth proportional to 218,226.06, 327,339.09 and 68,489.46 is: 102,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,226.06 : 327,339.09 = 68,489.46 : x
  2. Step 2: Convert to fraction form
    218,226.06/327,339.09 = 68,489.46/x
  3. Step 3: Cross multiply
    218,226.06x = 327,339.09 × 68,489.46
  4. Step 4: Simplify right side
    218,226.06x = 22,419,277,510.99
  5. Step 5: Solve for x
    x = 22,419,277,510.99/218,226.06
  6. Step 6: Final answer
    x = 102,734.19

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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.