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Finding the Third Proportional to 8,442.50 and 18,183

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Solution

The third proportional to 8,442.50 and 18,183 is: 39,161.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442.50 : 18,183 = 18,183 : x
  2. Step 2: Convert to fraction form
    8,442.50/18,183 = 18,183/x
  3. Step 3: Cross multiply
    8,442.50x = 18,183 × 18,183
  4. Step 4: Simplify right side
    8,442.50x = 330,621,489
  5. Step 5: Solve for x
    x = 330,621,489/8,442.50
  6. Step 6: Final answer
    x = 39,161.56

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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.