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Finding the Fourth Proportional to 192,003.80, 287,616.90 and 132,906.20

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Solution

The fourth proportional to 192,003.80, 287,616.90 and 132,906.20 is: 199,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,003.80 : 287,616.90 = 132,906.20 : x
  2. Step 2: Convert to fraction form
    192,003.80/287,616.90 = 132,906.20/x
  3. Step 3: Cross multiply
    192,003.80x = 287,616.90 × 132,906.20
  4. Step 4: Simplify right side
    192,003.80x = 38,226,069,234.78
  5. Step 5: Solve for x
    x = 38,226,069,234.78/192,003.80
  6. Step 6: Final answer
    x = 199,090.17

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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.