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Finding the Fourth Proportional to 269,820.80, 404,660.70 and 80,230.12

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Solution

The fourth proportional to 269,820.80, 404,660.70 and 80,230.12 is: 120,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,820.80 : 404,660.70 = 80,230.12 : x
  2. Step 2: Convert to fraction form
    269,820.80/404,660.70 = 80,230.12/x
  3. Step 3: Cross multiply
    269,820.80x = 404,660.70 × 80,230.12
  4. Step 4: Simplify right side
    269,820.80x = 32,465,976,520.28
  5. Step 5: Solve for x
    x = 32,465,976,520.28/269,820.80
  6. Step 6: Final answer
    x = 120,324.22

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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.