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Finding the Third Proportional to 197,154 and 308,872

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Solution

The third proportional to 197,154 and 308,872 is: 483,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,154 : 308,872 = 308,872 : x
  2. Step 2: Convert to fraction form
    197,154/308,872 = 308,872/x
  3. Step 3: Cross multiply
    197,154x = 308,872 × 308,872
  4. Step 4: Simplify right side
    197,154x = 95,401,912,384
  5. Step 5: Solve for x
    x = 95,401,912,384/197,154
  6. Step 6: Final answer
    x = 483,895.39

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.