Home / 220,854.68-331,337.10-102,609.80

Finding the Fourth Proportional to 220,854.68, 331,337.10 and 102,609.80

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Solution

The fourth proportional to 220,854.68, 331,337.10 and 102,609.80 is: 153,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,854.68 : 331,337.10 = 102,609.80 : x
  2. Step 2: Convert to fraction form
    220,854.68/331,337.10 = 102,609.80/x
  3. Step 3: Cross multiply
    220,854.68x = 331,337.10 × 102,609.80
  4. Step 4: Simplify right side
    220,854.68x = 33,998,433,563.58
  5. Step 5: Solve for x
    x = 33,998,433,563.58/220,854.68
  6. Step 6: Final answer
    x = 153,940.29

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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.