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Finding the Fourth Proportional to 275,221.80, 412,832.70 and 88,252.20

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Solution

The fourth proportional to 275,221.80, 412,832.70 and 88,252.20 is: 132,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,221.80 : 412,832.70 = 88,252.20 : x
  2. Step 2: Convert to fraction form
    275,221.80/412,832.70 = 88,252.20/x
  3. Step 3: Cross multiply
    275,221.80x = 412,832.70 × 88,252.20
  4. Step 4: Simplify right side
    275,221.80x = 36,433,394,006.94
  5. Step 5: Solve for x
    x = 36,433,394,006.94/275,221.80
  6. Step 6: Final answer
    x = 132,378.30

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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.