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Finding the Fourth Proportional to 485,260.26, 727,958.34 and 169,645.38

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Solution

The fourth proportional to 485,260.26, 727,958.34 and 169,645.38 is: 254,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,260.26 : 727,958.34 = 169,645.38 : x
  2. Step 2: Convert to fraction form
    485,260.26/727,958.34 = 169,645.38/x
  3. Step 3: Cross multiply
    485,260.26x = 727,958.34 × 169,645.38
  4. Step 4: Simplify right side
    485,260.26x = 123,494,769,213.47
  5. Step 5: Solve for x
    x = 123,494,769,213.47/485,260.26
  6. Step 6: Final answer
    x = 254,491.83

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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.