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Finding the Third Proportional to 87,640.50 and 190,635

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Solution

The third proportional to 87,640.50 and 190,635 is: 414,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,640.50 : 190,635 = 190,635 : x
  2. Step 2: Convert to fraction form
    87,640.50/190,635 = 190,635/x
  3. Step 3: Cross multiply
    87,640.50x = 190,635 × 190,635
  4. Step 4: Simplify right side
    87,640.50x = 36,341,703,225
  5. Step 5: Solve for x
    x = 36,341,703,225/87,640.50
  6. Step 6: Final answer
    x = 414,667.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.