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Finding the Third Proportional to 123,889.50 and 274,974.75

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Solution

The third proportional to 123,889.50 and 274,974.75 is: 610,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,889.50 : 274,974.75 = 274,974.75 : x
  2. Step 2: Convert to fraction form
    123,889.50/274,974.75 = 274,974.75/x
  3. Step 3: Cross multiply
    123,889.50x = 274,974.75 × 274,974.75
  4. Step 4: Simplify right side
    123,889.50x = 75,611,113,137.56
  5. Step 5: Solve for x
    x = 75,611,113,137.56/123,889.50
  6. Step 6: Final answer
    x = 610,310.91

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.