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Finding the Fourth Proportional to 445,238, 667,895.88 and 112,814

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Solution

The fourth proportional to 445,238, 667,895.88 and 112,814 is: 169,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,238 : 667,895.88 = 112,814 : x
  2. Step 2: Convert to fraction form
    445,238/667,895.88 = 112,814/x
  3. Step 3: Cross multiply
    445,238x = 667,895.88 × 112,814
  4. Step 4: Simplify right side
    445,238x = 75,348,005,806.32
  5. Step 5: Solve for x
    x = 75,348,005,806.32/445,238
  6. Step 6: Final answer
    x = 169,230.85

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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.