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Finding the Fourth Proportional to 269,845, 404,696.92 and 80,254.28

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Solution

The fourth proportional to 269,845, 404,696.92 and 80,254.28 is: 120,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,845 : 404,696.92 = 80,254.28 : x
  2. Step 2: Convert to fraction form
    269,845/404,696.92 = 80,254.28/x
  3. Step 3: Cross multiply
    269,845x = 404,696.92 × 80,254.28
  4. Step 4: Simplify right side
    269,845x = 32,478,659,932.82
  5. Step 5: Solve for x
    x = 32,478,659,932.82/269,845
  6. Step 6: Final answer
    x = 120,360.43

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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.