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Finding the Third Proportional to 172,396.50 and 267,615.75

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Solution

The third proportional to 172,396.50 and 267,615.75 is: 415,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,396.50 : 267,615.75 = 267,615.75 : x
  2. Step 2: Convert to fraction form
    172,396.50/267,615.75 = 267,615.75/x
  3. Step 3: Cross multiply
    172,396.50x = 267,615.75 × 267,615.75
  4. Step 4: Simplify right side
    172,396.50x = 71,618,189,648.06
  5. Step 5: Solve for x
    x = 71,618,189,648.06/172,396.50
  6. Step 6: Final answer
    x = 415,427.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.