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Finding the Fourth Proportional to 215,486.96, 323,377.92 and 75,245.60

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Solution

The fourth proportional to 215,486.96, 323,377.92 and 75,245.60 is: 112,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,486.96 : 323,377.92 = 75,245.60 : x
  2. Step 2: Convert to fraction form
    215,486.96/323,377.92 = 75,245.60/x
  3. Step 3: Cross multiply
    215,486.96x = 323,377.92 × 75,245.60
  4. Step 4: Simplify right side
    215,486.96x = 24,332,765,617.15
  5. Step 5: Solve for x
    x = 24,332,765,617.15/215,486.96
  6. Step 6: Final answer
    x = 112,919.90

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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.