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Finding the Third Proportional to 111,190.50 and 239,265

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Solution

The third proportional to 111,190.50 and 239,265 is: 514,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,190.50 : 239,265 = 239,265 : x
  2. Step 2: Convert to fraction form
    111,190.50/239,265 = 239,265/x
  3. Step 3: Cross multiply
    111,190.50x = 239,265 × 239,265
  4. Step 4: Simplify right side
    111,190.50x = 57,247,740,225
  5. Step 5: Solve for x
    x = 57,247,740,225/111,190.50
  6. Step 6: Final answer
    x = 514,861.79

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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.