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Finding the Fourth Proportional to 445,335.33, 667,997.32 and 108,376.55

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Solution

The fourth proportional to 445,335.33, 667,997.32 and 108,376.55 is: 162,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,335.33 : 667,997.32 = 108,376.55 : x
  2. Step 2: Convert to fraction form
    445,335.33/667,997.32 = 108,376.55/x
  3. Step 3: Cross multiply
    445,335.33x = 667,997.32 × 108,376.55
  4. Step 4: Simplify right side
    445,335.33x = 72,395,244,950.85
  5. Step 5: Solve for x
    x = 72,395,244,950.85/445,335.33
  6. Step 6: Final answer
    x = 162,563.44

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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.