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Finding the Third Proportional to 18,355 and 40,229

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Solution

The third proportional to 18,355 and 40,229 is: 88,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355 : 40,229 = 40,229 : x
  2. Step 2: Convert to fraction form
    18,355/40,229 = 40,229/x
  3. Step 3: Cross multiply
    18,355x = 40,229 × 40,229
  4. Step 4: Simplify right side
    18,355x = 1,618,372,441
  5. Step 5: Solve for x
    x = 1,618,372,441/18,355
  6. Step 6: Final answer
    x = 88,170.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.