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Finding the Third Proportional to 136,910 and 275,855

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Solution

The third proportional to 136,910 and 275,855 is: 555,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,910 : 275,855 = 275,855 : x
  2. Step 2: Convert to fraction form
    136,910/275,855 = 275,855/x
  3. Step 3: Cross multiply
    136,910x = 275,855 × 275,855
  4. Step 4: Simplify right side
    136,910x = 76,095,981,025
  5. Step 5: Solve for x
    x = 76,095,981,025/136,910
  6. Step 6: Final answer
    x = 555,810.25

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.