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Finding the Third Proportional to 252,722 and 555,988

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Solution

The third proportional to 252,722 and 555,988 is: 1,223,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,722 : 555,988 = 555,988 : x
  2. Step 2: Convert to fraction form
    252,722/555,988 = 555,988/x
  3. Step 3: Cross multiply
    252,722x = 555,988 × 555,988
  4. Step 4: Simplify right side
    252,722x = 309,122,656,144
  5. Step 5: Solve for x
    x = 309,122,656,144/252,722
  6. Step 6: Final answer
    x = 1,223,172.72

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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.