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Finding the Third Proportional to 137,726 and 205,949

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Solution

The third proportional to 137,726 and 205,949 is: 307,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,726 : 205,949 = 205,949 : x
  2. Step 2: Convert to fraction form
    137,726/205,949 = 205,949/x
  3. Step 3: Cross multiply
    137,726x = 205,949 × 205,949
  4. Step 4: Simplify right side
    137,726x = 42,414,990,601
  5. Step 5: Solve for x
    x = 42,414,990,601/137,726
  6. Step 6: Final answer
    x = 307,966.47

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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.