Home / 220,524.20-330,697.25-85,517.18

Finding the Fourth Proportional to 220,524.20, 330,697.25 and 85,517.18

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Solution

The fourth proportional to 220,524.20, 330,697.25 and 85,517.18 is: 128,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,524.20 : 330,697.25 = 85,517.18 : x
  2. Step 2: Convert to fraction form
    220,524.20/330,697.25 = 85,517.18/x
  3. Step 3: Cross multiply
    220,524.20x = 330,697.25 × 85,517.18
  4. Step 4: Simplify right side
    220,524.20x = 28,280,294,172.68
  5. Step 5: Solve for x
    x = 28,280,294,172.68/220,524.20
  6. Step 6: Final answer
    x = 128,241.23

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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.