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Finding the Third Proportional to 165,663 and 255,100

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Solution

The third proportional to 165,663 and 255,100 is: 392,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,663 : 255,100 = 255,100 : x
  2. Step 2: Convert to fraction form
    165,663/255,100 = 255,100/x
  3. Step 3: Cross multiply
    165,663x = 255,100 × 255,100
  4. Step 4: Simplify right side
    165,663x = 65,076,010,000
  5. Step 5: Solve for x
    x = 65,076,010,000/165,663
  6. Step 6: Final answer
    x = 392,821.63

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.