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Finding the Third Proportional to 201,208 and 418,945

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Solution

The third proportional to 201,208 and 418,945 is: 872,305.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,208 : 418,945 = 418,945 : x
  2. Step 2: Convert to fraction form
    201,208/418,945 = 418,945/x
  3. Step 3: Cross multiply
    201,208x = 418,945 × 418,945
  4. Step 4: Simplify right side
    201,208x = 175,514,913,025
  5. Step 5: Solve for x
    x = 175,514,913,025/201,208
  6. Step 6: Final answer
    x = 872,305.84

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.