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Finding the Third Proportional to 133,868 and 196,330

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Solution

The third proportional to 133,868 and 196,330 is: 287,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,868 : 196,330 = 196,330 : x
  2. Step 2: Convert to fraction form
    133,868/196,330 = 196,330/x
  3. Step 3: Cross multiply
    133,868x = 196,330 × 196,330
  4. Step 4: Simplify right side
    133,868x = 38,545,468,900
  5. Step 5: Solve for x
    x = 38,545,468,900/133,868
  6. Step 6: Final answer
    x = 287,936.39

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.