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Finding the Fourth Proportional to 445,236, 667,892.88 and 112,812

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Solution

The fourth proportional to 445,236, 667,892.88 and 112,812 is: 169,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,236 : 667,892.88 = 112,812 : x
  2. Step 2: Convert to fraction form
    445,236/667,892.88 = 112,812/x
  3. Step 3: Cross multiply
    445,236x = 667,892.88 × 112,812
  4. Step 4: Simplify right side
    445,236x = 75,346,331,578.56
  5. Step 5: Solve for x
    x = 75,346,331,578.56/445,236
  6. Step 6: Final answer
    x = 169,227.85

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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.