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Finding the Third Proportional to 91,283 and 196,147

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Solution

The third proportional to 91,283 and 196,147 is: 421,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,283 : 196,147 = 196,147 : x
  2. Step 2: Convert to fraction form
    91,283/196,147 = 196,147/x
  3. Step 3: Cross multiply
    91,283x = 196,147 × 196,147
  4. Step 4: Simplify right side
    91,283x = 38,473,645,609
  5. Step 5: Solve for x
    x = 38,473,645,609/91,283
  6. Step 6: Final answer
    x = 421,476.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.