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Finding the Fourth Proportional to 327,242.67, 490,809.32 and 90,609.27

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Solution

The fourth proportional to 327,242.67, 490,809.32 and 90,609.27 is: 135,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,242.67 : 490,809.32 = 90,609.27 : x
  2. Step 2: Convert to fraction form
    327,242.67/490,809.32 = 90,609.27/x
  3. Step 3: Cross multiply
    327,242.67x = 490,809.32 × 90,609.27
  4. Step 4: Simplify right side
    327,242.67x = 44,471,874,194.40
  5. Step 5: Solve for x
    x = 44,471,874,194.40/327,242.67
  6. Step 6: Final answer
    x = 135,898.76

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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.