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Finding the Third Proportional to 205,986 and 275,891

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Solution

The third proportional to 205,986 and 275,891 is: 369,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,986 : 275,891 = 275,891 : x
  2. Step 2: Convert to fraction form
    205,986/275,891 = 275,891/x
  3. Step 3: Cross multiply
    205,986x = 275,891 × 275,891
  4. Step 4: Simplify right side
    205,986x = 76,115,843,881
  5. Step 5: Solve for x
    x = 76,115,843,881/205,986
  6. Step 6: Final answer
    x = 369,519.50

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.