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Finding the Third Proportional to 54,513 and 121,401

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Solution

The third proportional to 54,513 and 121,401 is: 270,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,513 : 121,401 = 121,401 : x
  2. Step 2: Convert to fraction form
    54,513/121,401 = 121,401/x
  3. Step 3: Cross multiply
    54,513x = 121,401 × 121,401
  4. Step 4: Simplify right side
    54,513x = 14,738,202,801
  5. Step 5: Solve for x
    x = 14,738,202,801/54,513
  6. Step 6: Final answer
    x = 270,361.25

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.