Home / 218,234.38-327,431.53-91,906.43

Finding the Fourth Proportional to 218,234.38, 327,431.53 and 91,906.43

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Solution

The fourth proportional to 218,234.38, 327,431.53 and 91,906.43 is: 137,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,234.38 : 327,431.53 = 91,906.43 : x
  2. Step 2: Convert to fraction form
    218,234.38/327,431.53 = 91,906.43/x
  3. Step 3: Cross multiply
    218,234.38x = 327,431.53 × 91,906.43
  4. Step 4: Simplify right side
    218,234.38x = 30,093,062,991.74
  5. Step 5: Solve for x
    x = 30,093,062,991.74/218,234.38
  6. Step 6: Final answer
    x = 137,893.32

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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.