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Finding the Fourth Proportional to 221,163.38, 331,745.06 and 54,951.38

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Solution

The fourth proportional to 221,163.38, 331,745.06 and 54,951.38 is: 82,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,163.38 : 331,745.06 = 54,951.38 : x
  2. Step 2: Convert to fraction form
    221,163.38/331,745.06 = 54,951.38/x
  3. Step 3: Cross multiply
    221,163.38x = 331,745.06 × 54,951.38
  4. Step 4: Simplify right side
    221,163.38x = 18,229,847,333.84
  5. Step 5: Solve for x
    x = 18,229,847,333.84/221,163.38
  6. Step 6: Final answer
    x = 82,427.06

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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.