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Finding the Third Proportional to 66,806 and 155,351

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Solution

The third proportional to 66,806 and 155,351 is: 361,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,806 : 155,351 = 155,351 : x
  2. Step 2: Convert to fraction form
    66,806/155,351 = 155,351/x
  3. Step 3: Cross multiply
    66,806x = 155,351 × 155,351
  4. Step 4: Simplify right side
    66,806x = 24,133,933,201
  5. Step 5: Solve for x
    x = 24,133,933,201/66,806
  6. Step 6: Final answer
    x = 361,253.98

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.