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Finding the Fourth Proportional to 269,737.80, 404,660.70 and 80,197.80

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Solution

The fourth proportional to 269,737.80, 404,660.70 and 80,197.80 is: 120,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,737.80 : 404,660.70 = 80,197.80 : x
  2. Step 2: Convert to fraction form
    269,737.80/404,660.70 = 80,197.80/x
  3. Step 3: Cross multiply
    269,737.80x = 404,660.70 × 80,197.80
  4. Step 4: Simplify right side
    269,737.80x = 32,452,897,886.46
  5. Step 5: Solve for x
    x = 32,452,897,886.46/269,737.80
  6. Step 6: Final answer
    x = 120,312.76

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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.