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Finding the Third Proportional to 166,990.50 and 339,810.75

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Solution

The third proportional to 166,990.50 and 339,810.75 is: 691,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,990.50 : 339,810.75 = 339,810.75 : x
  2. Step 2: Convert to fraction form
    166,990.50/339,810.75 = 339,810.75/x
  3. Step 3: Cross multiply
    166,990.50x = 339,810.75 × 339,810.75
  4. Step 4: Simplify right side
    166,990.50x = 115,471,345,815.56
  5. Step 5: Solve for x
    x = 115,471,345,815.56/166,990.50
  6. Step 6: Final answer
    x = 691,484.52

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.