Home / 221,432.10-332,180.55-71,646.90

Finding the Fourth Proportional to 221,432.10, 332,180.55 and 71,646.90

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Solution

The fourth proportional to 221,432.10, 332,180.55 and 71,646.90 is: 107,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.10 : 332,180.55 = 71,646.90 : x
  2. Step 2: Convert to fraction form
    221,432.10/332,180.55 = 71,646.90/x
  3. Step 3: Cross multiply
    221,432.10x = 332,180.55 × 71,646.90
  4. Step 4: Simplify right side
    221,432.10x = 23,799,706,647.80
  5. Step 5: Solve for x
    x = 23,799,706,647.80/221,432.10
  6. Step 6: Final answer
    x = 107,480.83

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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.