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Finding the Third Proportional to 253,858 and 557,542

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Solution

The third proportional to 253,858 and 557,542 is: 1,224,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,858 : 557,542 = 557,542 : x
  2. Step 2: Convert to fraction form
    253,858/557,542 = 557,542/x
  3. Step 3: Cross multiply
    253,858x = 557,542 × 557,542
  4. Step 4: Simplify right side
    253,858x = 310,853,081,764
  5. Step 5: Solve for x
    x = 310,853,081,764/253,858
  6. Step 6: Final answer
    x = 1,224,515.60

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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.