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Finding the Third Proportional to 201,642 and 440,218

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Solution

The third proportional to 201,642 and 440,218 is: 961,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,642 : 440,218 = 440,218 : x
  2. Step 2: Convert to fraction form
    201,642/440,218 = 440,218/x
  3. Step 3: Cross multiply
    201,642x = 440,218 × 440,218
  4. Step 4: Simplify right side
    201,642x = 193,791,887,524
  5. Step 5: Solve for x
    x = 193,791,887,524/201,642
  6. Step 6: Final answer
    x = 961,069.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.