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Finding the Fourth Proportional to 327,249.90, 490,874.85 and 243,269.10

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Solution

The fourth proportional to 327,249.90, 490,874.85 and 243,269.10 is: 364,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,249.90 : 490,874.85 = 243,269.10 : x
  2. Step 2: Convert to fraction form
    327,249.90/490,874.85 = 243,269.10/x
  3. Step 3: Cross multiply
    327,249.90x = 490,874.85 × 243,269.10
  4. Step 4: Simplify right side
    327,249.90x = 119,414,682,972.14
  5. Step 5: Solve for x
    x = 119,414,682,972.14/327,249.90
  6. Step 6: Final answer
    x = 364,903.65

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1.5x scale

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.