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Finding the Third Proportional to 203,158 and 309,267

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Solution

The third proportional to 203,158 and 309,267 is: 470,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,158 : 309,267 = 309,267 : x
  2. Step 2: Convert to fraction form
    203,158/309,267 = 309,267/x
  3. Step 3: Cross multiply
    203,158x = 309,267 × 309,267
  4. Step 4: Simplify right side
    203,158x = 95,646,077,289
  5. Step 5: Solve for x
    x = 95,646,077,289/203,158
  6. Step 6: Final answer
    x = 470,796.51

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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.