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Finding the Fourth Proportional to 215,755.40, 323,581.24 and 110,520.20

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Solution

The fourth proportional to 215,755.40, 323,581.24 and 110,520.20 is: 165,753.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,755.40 : 323,581.24 = 110,520.20 : x
  2. Step 2: Convert to fraction form
    215,755.40/323,581.24 = 110,520.20/x
  3. Step 3: Cross multiply
    215,755.40x = 323,581.24 × 110,520.20
  4. Step 4: Simplify right side
    215,755.40x = 35,762,263,361.05
  5. Step 5: Solve for x
    x = 35,762,263,361.05/215,755.40
  6. Step 6: Final answer
    x = 165,753.73

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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.