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Finding the Third Proportional to 203,368 and 309,198

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Solution

The third proportional to 203,368 and 309,198 is: 470,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,368 : 309,198 = 309,198 : x
  2. Step 2: Convert to fraction form
    203,368/309,198 = 309,198/x
  3. Step 3: Cross multiply
    203,368x = 309,198 × 309,198
  4. Step 4: Simplify right side
    203,368x = 95,603,403,204
  5. Step 5: Solve for x
    x = 95,603,403,204/203,368
  6. Step 6: Final answer
    x = 470,100.52

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.