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Finding the Fourth Proportional to 276,604.92, 381,799.41 and 161,910.39

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Solution

The fourth proportional to 276,604.92, 381,799.41 and 161,910.39 is: 223,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,604.92 : 381,799.41 = 161,910.39 : x
  2. Step 2: Convert to fraction form
    276,604.92/381,799.41 = 161,910.39/x
  3. Step 3: Cross multiply
    276,604.92x = 381,799.41 × 161,910.39
  4. Step 4: Simplify right side
    276,604.92x = 61,817,291,374.87
  5. Step 5: Solve for x
    x = 61,817,291,374.87/276,604.92
  6. Step 6: Final answer
    x = 223,485.87

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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.