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Finding the Fourth Proportional to 445,241.75, 667,863.99 and 108,282.47

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Solution

The fourth proportional to 445,241.75, 667,863.99 and 108,282.47 is: 162,424.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,241.75 : 667,863.99 = 108,282.47 : x
  2. Step 2: Convert to fraction form
    445,241.75/667,863.99 = 108,282.47/x
  3. Step 3: Cross multiply
    445,241.75x = 667,863.99 × 108,282.47
  4. Step 4: Simplify right side
    445,241.75x = 72,317,959,121.94
  5. Step 5: Solve for x
    x = 72,317,959,121.94/445,241.75
  6. Step 6: Final answer
    x = 162,424.03

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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.