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Finding the Third Proportional to 200,746 and 445,778

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Solution

The third proportional to 200,746 and 445,778 is: 989,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,746 : 445,778 = 445,778 : x
  2. Step 2: Convert to fraction form
    200,746/445,778 = 445,778/x
  3. Step 3: Cross multiply
    200,746x = 445,778 × 445,778
  4. Step 4: Simplify right side
    200,746x = 198,718,025,284
  5. Step 5: Solve for x
    x = 198,718,025,284/200,746
  6. Step 6: Final answer
    x = 989,897.81

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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.