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Finding the Fourth Proportional to 324,110.11, 486,165.15 and 87,452.78

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Solution

The fourth proportional to 324,110.11, 486,165.15 and 87,452.78 is: 131,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,110.11 : 486,165.15 = 87,452.78 : x
  2. Step 2: Convert to fraction form
    324,110.11/486,165.15 = 87,452.78/x
  3. Step 3: Cross multiply
    324,110.11x = 486,165.15 × 87,452.78
  4. Step 4: Simplify right side
    324,110.11x = 42,516,495,122.03
  5. Step 5: Solve for x
    x = 42,516,495,122.03/324,110.11
  6. Step 6: Final answer
    x = 131,179.17

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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.