Home / 218,617.98-327,938.58-68,869.91

Finding the Fourth Proportional to 218,617.98, 327,938.58 and 68,869.91

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Solution

The fourth proportional to 218,617.98, 327,938.58 and 68,869.91 is: 103,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,617.98 : 327,938.58 = 68,869.91 : x
  2. Step 2: Convert to fraction form
    218,617.98/327,938.58 = 68,869.91/x
  3. Step 3: Cross multiply
    218,617.98x = 327,938.58 × 68,869.91
  4. Step 4: Simplify right side
    218,617.98x = 22,585,098,850.43
  5. Step 5: Solve for x
    x = 22,585,098,850.43/218,617.98
  6. Step 6: Final answer
    x = 103,308.51

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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.