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Finding the Fourth Proportional to 221,611.50, 332,603.22 and 115,060.86

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Solution

The fourth proportional to 221,611.50, 332,603.22 and 115,060.86 is: 172,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,611.50 : 332,603.22 = 115,060.86 : x
  2. Step 2: Convert to fraction form
    221,611.50/332,603.22 = 115,060.86/x
  3. Step 3: Cross multiply
    221,611.50x = 332,603.22 × 115,060.86
  4. Step 4: Simplify right side
    221,611.50x = 38,269,612,531.97
  5. Step 5: Solve for x
    x = 38,269,612,531.97/221,611.50
  6. Step 6: Final answer
    x = 172,687.85

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1.5x scale

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.