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Finding the Third Proportional to 90,183 and 140,187

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Solution

The third proportional to 90,183 and 140,187 is: 217,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,183 : 140,187 = 140,187 : x
  2. Step 2: Convert to fraction form
    90,183/140,187 = 140,187/x
  3. Step 3: Cross multiply
    90,183x = 140,187 × 140,187
  4. Step 4: Simplify right side
    90,183x = 19,652,394,969
  5. Step 5: Solve for x
    x = 19,652,394,969/90,183
  6. Step 6: Final answer
    x = 217,916.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.