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Finding the Fourth Proportional to 192,445.80, 288,279.90 and 133,348.20

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Solution

The fourth proportional to 192,445.80, 288,279.90 and 133,348.20 is: 199,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,445.80 : 288,279.90 = 133,348.20 : x
  2. Step 2: Convert to fraction form
    192,445.80/288,279.90 = 133,348.20/x
  3. Step 3: Cross multiply
    192,445.80x = 288,279.90 × 133,348.20
  4. Step 4: Simplify right side
    192,445.80x = 38,441,605,761.18
  5. Step 5: Solve for x
    x = 38,441,605,761.18/192,445.80
  6. Step 6: Final answer
    x = 199,752.90

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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.