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Finding the Third Proportional to 190,215 and 401,652

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Solution

The third proportional to 190,215 and 401,652 is: 848,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,215 : 401,652 = 401,652 : x
  2. Step 2: Convert to fraction form
    190,215/401,652 = 401,652/x
  3. Step 3: Cross multiply
    190,215x = 401,652 × 401,652
  4. Step 4: Simplify right side
    190,215x = 161,324,329,104
  5. Step 5: Solve for x
    x = 161,324,329,104/190,215
  6. Step 6: Final answer
    x = 848,115.71

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.