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Finding the Third Proportional to 200,749 and 445,785

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Solution

The third proportional to 200,749 and 445,785 is: 989,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,749 : 445,785 = 445,785 : x
  2. Step 2: Convert to fraction form
    200,749/445,785 = 445,785/x
  3. Step 3: Cross multiply
    200,749x = 445,785 × 445,785
  4. Step 4: Simplify right side
    200,749x = 198,724,266,225
  5. Step 5: Solve for x
    x = 198,724,266,225/200,749
  6. Step 6: Final answer
    x = 989,914.10

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.