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Finding the Third Proportional to 111,255.75 and 172,588.50

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Solution

The third proportional to 111,255.75 and 172,588.50 is: 267,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,255.75 : 172,588.50 = 172,588.50 : x
  2. Step 2: Convert to fraction form
    111,255.75/172,588.50 = 172,588.50/x
  3. Step 3: Cross multiply
    111,255.75x = 172,588.50 × 172,588.50
  4. Step 4: Simplify right side
    111,255.75x = 29,786,790,332.25
  5. Step 5: Solve for x
    x = 29,786,790,332.25/111,255.75
  6. Step 6: Final answer
    x = 267,732.59

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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.