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Finding the Third Proportional to 311,202 and 633,816

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Solution

The third proportional to 311,202 and 633,816 is: 1,290,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,202 : 633,816 = 633,816 : x
  2. Step 2: Convert to fraction form
    311,202/633,816 = 633,816/x
  3. Step 3: Cross multiply
    311,202x = 633,816 × 633,816
  4. Step 4: Simplify right side
    311,202x = 401,722,721,856
  5. Step 5: Solve for x
    x = 401,722,721,856/311,202
  6. Step 6: Final answer
    x = 1,290,874.49

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.