Home / 220,843.48-331,263.78-132,121.84

Finding the Fourth Proportional to 220,843.48, 331,263.78 and 132,121.84

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Solution

The fourth proportional to 220,843.48, 331,263.78 and 132,121.84 is: 198,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,843.48 : 331,263.78 = 132,121.84 : x
  2. Step 2: Convert to fraction form
    220,843.48/331,263.78 = 132,121.84/x
  3. Step 3: Cross multiply
    220,843.48x = 331,263.78 × 132,121.84
  4. Step 4: Simplify right side
    220,843.48x = 43,767,180,138.96
  5. Step 5: Solve for x
    x = 43,767,180,138.96/220,843.48
  6. Step 6: Final answer
    x = 198,181.90

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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.