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Finding the Fourth Proportional to 276,244.28, 381,246.60 and 161,558

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Solution

The fourth proportional to 276,244.28, 381,246.60 and 161,558 is: 222,967.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,244.28 : 381,246.60 = 161,558 : x
  2. Step 2: Convert to fraction form
    276,244.28/381,246.60 = 161,558/x
  3. Step 3: Cross multiply
    276,244.28x = 381,246.60 × 161,558
  4. Step 4: Simplify right side
    276,244.28x = 61,593,438,202.80
  5. Step 5: Solve for x
    x = 61,593,438,202.80/276,244.28
  6. Step 6: Final answer
    x = 222,967.29

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Why These Related Problems?

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