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Finding the Third Proportional to 278,160.75 and 418,537.13

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Solution

The third proportional to 278,160.75 and 418,537.13 is: 629,755.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,160.75 : 418,537.13 = 418,537.13 : x
  2. Step 2: Convert to fraction form
    278,160.75/418,537.13 = 418,537.13/x
  3. Step 3: Cross multiply
    278,160.75x = 418,537.13 × 418,537.13
  4. Step 4: Simplify right side
    278,160.75x = 175,173,325,003.27
  5. Step 5: Solve for x
    x = 175,173,325,003.27/278,160.75
  6. Step 6: Final answer
    x = 629,755.73

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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.