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Finding the Fourth Proportional to 276,806, 381,992.28 and 149,481.60

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Solution

The fourth proportional to 276,806, 381,992.28 and 149,481.60 is: 206,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,806 : 381,992.28 = 149,481.60 : x
  2. Step 2: Convert to fraction form
    276,806/381,992.28 = 149,481.60/x
  3. Step 3: Cross multiply
    276,806x = 381,992.28 × 149,481.60
  4. Step 4: Simplify right side
    276,806x = 57,100,817,202.05
  5. Step 5: Solve for x
    x = 57,100,817,202.05/276,806
  6. Step 6: Final answer
    x = 206,284.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.