Home / 220,853.68-331,335.60-102,608.80

Finding the Fourth Proportional to 220,853.68, 331,335.60 and 102,608.80

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Solution

The fourth proportional to 220,853.68, 331,335.60 and 102,608.80 is: 153,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,853.68 : 331,335.60 = 102,608.80 : x
  2. Step 2: Convert to fraction form
    220,853.68/331,335.60 = 102,608.80/x
  3. Step 3: Cross multiply
    220,853.68x = 331,335.60 × 102,608.80
  4. Step 4: Simplify right side
    220,853.68x = 33,997,948,313.28
  5. Step 5: Solve for x
    x = 33,997,948,313.28/220,853.68
  6. Step 6: Final answer
    x = 153,938.79

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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.