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Finding the Third Proportional to 275,248.13 and 387,615.38

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Solution

The third proportional to 275,248.13 and 387,615.38 is: 545,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,248.13 : 387,615.38 = 387,615.38 : x
  2. Step 2: Convert to fraction form
    275,248.13/387,615.38 = 387,615.38/x
  3. Step 3: Cross multiply
    275,248.13x = 387,615.38 × 387,615.38
  4. Step 4: Simplify right side
    275,248.13x = 150,245,678,936.39
  5. Step 5: Solve for x
    x = 150,245,678,936.39/275,248.13
  6. Step 6: Final answer
    x = 545,855.41

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.