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Finding the Third Proportional to 201,640 and 274,011

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Solution

The third proportional to 201,640 and 274,011 is: 372,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,640 : 274,011 = 274,011 : x
  2. Step 2: Convert to fraction form
    201,640/274,011 = 274,011/x
  3. Step 3: Cross multiply
    201,640x = 274,011 × 274,011
  4. Step 4: Simplify right side
    201,640x = 75,082,028,121
  5. Step 5: Solve for x
    x = 75,082,028,121/201,640
  6. Step 6: Final answer
    x = 372,356.81

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.