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Finding the Third Proportional to 70,121 and 154,265

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Solution

The third proportional to 70,121 and 154,265 is: 339,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121 : 154,265 = 154,265 : x
  2. Step 2: Convert to fraction form
    70,121/154,265 = 154,265/x
  3. Step 3: Cross multiply
    70,121x = 154,265 × 154,265
  4. Step 4: Simplify right side
    70,121x = 23,797,690,225
  5. Step 5: Solve for x
    x = 23,797,690,225/70,121
  6. Step 6: Final answer
    x = 339,380.36

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.