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Finding the Fourth Proportional to 269,906.20, 404,859.30 and 217,418.20

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Solution

The fourth proportional to 269,906.20, 404,859.30 and 217,418.20 is: 326,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,906.20 : 404,859.30 = 217,418.20 : x
  2. Step 2: Convert to fraction form
    269,906.20/404,859.30 = 217,418.20/x
  3. Step 3: Cross multiply
    269,906.20x = 404,859.30 × 217,418.20
  4. Step 4: Simplify right side
    269,906.20x = 88,023,780,259.26
  5. Step 5: Solve for x
    x = 88,023,780,259.26/269,906.20
  6. Step 6: Final answer
    x = 326,127.30

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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.