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Finding the Third Proportional to 118,556 and 279,857

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Solution

The third proportional to 118,556 and 279,857 is: 660,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,556 : 279,857 = 279,857 : x
  2. Step 2: Convert to fraction form
    118,556/279,857 = 279,857/x
  3. Step 3: Cross multiply
    118,556x = 279,857 × 279,857
  4. Step 4: Simplify right side
    118,556x = 78,319,940,449
  5. Step 5: Solve for x
    x = 78,319,940,449/118,556
  6. Step 6: Final answer
    x = 660,615.58

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.