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Finding the Fourth Proportional to 445,325.82, 667,990.10 and 108,366.54

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Solution

The fourth proportional to 445,325.82, 667,990.10 and 108,366.54 is: 162,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,325.82 : 667,990.10 = 108,366.54 : x
  2. Step 2: Convert to fraction form
    445,325.82/667,990.10 = 108,366.54/x
  3. Step 3: Cross multiply
    445,325.82x = 667,990.10 × 108,366.54
  4. Step 4: Simplify right side
    445,325.82x = 72,387,775,891.25
  5. Step 5: Solve for x
    x = 72,387,775,891.25/445,325.82
  6. Step 6: Final answer
    x = 162,550.14

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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.