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Finding the Third Proportional to 172,272 and 252,736

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Solution

The third proportional to 172,272 and 252,736 is: 370,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,272 : 252,736 = 252,736 : x
  2. Step 2: Convert to fraction form
    172,272/252,736 = 252,736/x
  3. Step 3: Cross multiply
    172,272x = 252,736 × 252,736
  4. Step 4: Simplify right side
    172,272x = 63,875,485,696
  5. Step 5: Solve for x
    x = 63,875,485,696/172,272
  6. Step 6: Final answer
    x = 370,782.75

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.