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Finding the Fourth Proportional to 215,597.57, 323,565.84 and 149,502.78

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Solution

The fourth proportional to 215,597.57, 323,565.84 and 149,502.78 is: 224,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,597.57 : 323,565.84 = 149,502.78 : x
  2. Step 2: Convert to fraction form
    215,597.57/323,565.84 = 149,502.78/x
  3. Step 3: Cross multiply
    215,597.57x = 323,565.84 × 149,502.78
  4. Step 4: Simplify right side
    215,597.57x = 48,373,992,593.04
  5. Step 5: Solve for x
    x = 48,373,992,593.04/215,597.57
  6. Step 6: Final answer
    x = 224,371.70

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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.