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Finding the Fourth Proportional to 269,712.20, 404,568.30 and 218,973.80

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Solution

The fourth proportional to 269,712.20, 404,568.30 and 218,973.80 is: 328,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,712.20 : 404,568.30 = 218,973.80 : x
  2. Step 2: Convert to fraction form
    269,712.20/404,568.30 = 218,973.80/x
  3. Step 3: Cross multiply
    269,712.20x = 404,568.30 × 218,973.80
  4. Step 4: Simplify right side
    269,712.20x = 88,589,858,010.54
  5. Step 5: Solve for x
    x = 88,589,858,010.54/269,712.20
  6. Step 6: Final answer
    x = 328,460.70

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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.