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Finding the Third Proportional to 115,372 and 247,980

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Solution

The third proportional to 115,372 and 247,980 is: 533,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,372 : 247,980 = 247,980 : x
  2. Step 2: Convert to fraction form
    115,372/247,980 = 247,980/x
  3. Step 3: Cross multiply
    115,372x = 247,980 × 247,980
  4. Step 4: Simplify right side
    115,372x = 61,494,080,400
  5. Step 5: Solve for x
    x = 61,494,080,400/115,372
  6. Step 6: Final answer
    x = 533,006.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.