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Finding the Third Proportional to 61,630 and 133,100

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Solution

The third proportional to 61,630 and 133,100 is: 287,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,630 : 133,100 = 133,100 : x
  2. Step 2: Convert to fraction form
    61,630/133,100 = 133,100/x
  3. Step 3: Cross multiply
    61,630x = 133,100 × 133,100
  4. Step 4: Simplify right side
    61,630x = 17,715,610,000
  5. Step 5: Solve for x
    x = 17,715,610,000/61,630
  6. Step 6: Final answer
    x = 287,451.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.