Home / 215,517.66-297,385.11-120,005.34

Finding the Fourth Proportional to 215,517.66, 297,385.11 and 120,005.34

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Solution

The fourth proportional to 215,517.66, 297,385.11 and 120,005.34 is: 165,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,517.66 : 297,385.11 = 120,005.34 : x
  2. Step 2: Convert to fraction form
    215,517.66/297,385.11 = 120,005.34/x
  3. Step 3: Cross multiply
    215,517.66x = 297,385.11 × 120,005.34
  4. Step 4: Simplify right side
    215,517.66x = 35,687,801,236.49
  5. Step 5: Solve for x
    x = 35,687,801,236.49/215,517.66
  6. Step 6: Final answer
    x = 165,591.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.