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Finding the Third Proportional to 201,110 and 397,144

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Solution

The third proportional to 201,110 and 397,144 is: 784,264.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,110 : 397,144 = 397,144 : x
  2. Step 2: Convert to fraction form
    201,110/397,144 = 397,144/x
  3. Step 3: Cross multiply
    201,110x = 397,144 × 397,144
  4. Step 4: Simplify right side
    201,110x = 157,723,356,736
  5. Step 5: Solve for x
    x = 157,723,356,736/201,110
  6. Step 6: Final answer
    x = 784,264.12

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.