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Finding the Fourth Proportional to 325,561, 490,559.87 and 267,693

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Solution

The fourth proportional to 325,561, 490,559.87 and 267,693 is: 403,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,561 : 490,559.87 = 267,693 : x
  2. Step 2: Convert to fraction form
    325,561/490,559.87 = 267,693/x
  3. Step 3: Cross multiply
    325,561x = 490,559.87 × 267,693
  4. Step 4: Simplify right side
    325,561x = 131,319,443,279.91
  5. Step 5: Solve for x
    x = 131,319,443,279.91/325,561
  6. Step 6: Final answer
    x = 403,363.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.