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Finding the Fourth Proportional to 275,039.09, 411,918.92 and 267,471.46

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Solution

The fourth proportional to 275,039.09, 411,918.92 and 267,471.46 is: 400,585.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,039.09 : 411,918.92 = 267,471.46 : x
  2. Step 2: Convert to fraction form
    275,039.09/411,918.92 = 267,471.46/x
  3. Step 3: Cross multiply
    275,039.09x = 411,918.92 × 267,471.46
  4. Step 4: Simplify right side
    275,039.09x = 110,176,555,114.58
  5. Step 5: Solve for x
    x = 110,176,555,114.58/275,039.09
  6. Step 6: Final answer
    x = 400,585.08

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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.