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Finding the Third Proportional to 55,759 and 122,587

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Solution

The third proportional to 55,759 and 122,587 is: 269,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,759 : 122,587 = 122,587 : x
  2. Step 2: Convert to fraction form
    55,759/122,587 = 122,587/x
  3. Step 3: Cross multiply
    55,759x = 122,587 × 122,587
  4. Step 4: Simplify right side
    55,759x = 15,027,572,569
  5. Step 5: Solve for x
    x = 15,027,572,569/55,759
  6. Step 6: Final answer
    x = 269,509.36

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.