Home / 215,331.20-322,850.80-120,626.56

Finding the Fourth Proportional to 215,331.20, 322,850.80 and 120,626.56

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Solution

The fourth proportional to 215,331.20, 322,850.80 and 120,626.56 is: 180,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,331.20 : 322,850.80 = 120,626.56 : x
  2. Step 2: Convert to fraction form
    215,331.20/322,850.80 = 120,626.56/x
  3. Step 3: Cross multiply
    215,331.20x = 322,850.80 × 120,626.56
  4. Step 4: Simplify right side
    215,331.20x = 38,944,381,397.25
  5. Step 5: Solve for x
    x = 38,944,381,397.25/215,331.20
  6. Step 6: Final answer
    x = 180,858.05

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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.