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Finding the Third Proportional to 106,938 and 216,466

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Solution

The third proportional to 106,938 and 216,466 is: 438,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,938 : 216,466 = 216,466 : x
  2. Step 2: Convert to fraction form
    106,938/216,466 = 216,466/x
  3. Step 3: Cross multiply
    106,938x = 216,466 × 216,466
  4. Step 4: Simplify right side
    106,938x = 46,857,529,156
  5. Step 5: Solve for x
    x = 46,857,529,156/106,938
  6. Step 6: Final answer
    x = 438,174.73

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.