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Finding the Third Proportional to 198,835.50 and 301,149

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Solution

The third proportional to 198,835.50 and 301,149 is: 456,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,835.50 : 301,149 = 301,149 : x
  2. Step 2: Convert to fraction form
    198,835.50/301,149 = 301,149/x
  3. Step 3: Cross multiply
    198,835.50x = 301,149 × 301,149
  4. Step 4: Simplify right side
    198,835.50x = 90,690,720,201
  5. Step 5: Solve for x
    x = 90,690,720,201/198,835.50
  6. Step 6: Final answer
    x = 456,109.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.