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Finding the Third Proportional to 40,365 and 87,885

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Solution

The third proportional to 40,365 and 87,885 is: 191,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,365 : 87,885 = 87,885 : x
  2. Step 2: Convert to fraction form
    40,365/87,885 = 87,885/x
  3. Step 3: Cross multiply
    40,365x = 87,885 × 87,885
  4. Step 4: Simplify right side
    40,365x = 7,723,773,225
  5. Step 5: Solve for x
    x = 7,723,773,225/40,365
  6. Step 6: Final answer
    x = 191,348.28

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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.