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Finding the Third Proportional to 97,200 and 208,872

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Solution

The third proportional to 97,200 and 208,872 is: 448,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,200 : 208,872 = 208,872 : x
  2. Step 2: Convert to fraction form
    97,200/208,872 = 208,872/x
  3. Step 3: Cross multiply
    97,200x = 208,872 × 208,872
  4. Step 4: Simplify right side
    97,200x = 43,627,512,384
  5. Step 5: Solve for x
    x = 43,627,512,384/97,200
  6. Step 6: Final answer
    x = 448,842.72

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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.