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Finding the Fourth Proportional to 218,262.32, 327,327.68 and 143,379.44

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Solution

The fourth proportional to 218,262.32, 327,327.68 and 143,379.44 is: 215,025.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,262.32 : 327,327.68 = 143,379.44 : x
  2. Step 2: Convert to fraction form
    218,262.32/327,327.68 = 143,379.44/x
  3. Step 3: Cross multiply
    218,262.32x = 327,327.68 × 143,379.44
  4. Step 4: Simplify right side
    218,262.32x = 46,932,059,454.90
  5. Step 5: Solve for x
    x = 46,932,059,454.90/218,262.32
  6. Step 6: Final answer
    x = 215,025.94

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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.