Home / 218,171.16-327,260.79-68,408.10

Finding the Fourth Proportional to 218,171.16, 327,260.79 and 68,408.10

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Solution

The fourth proportional to 218,171.16, 327,260.79 and 68,408.10 is: 102,613.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,171.16 : 327,260.79 = 68,408.10 : x
  2. Step 2: Convert to fraction form
    218,171.16/327,260.79 = 68,408.10/x
  3. Step 3: Cross multiply
    218,171.16x = 327,260.79 × 68,408.10
  4. Step 4: Simplify right side
    218,171.16x = 22,387,288,848.40
  5. Step 5: Solve for x
    x = 22,387,288,848.40/218,171.16
  6. Step 6: Final answer
    x = 102,613.42

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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.