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Finding the Third Proportional to 203,156 and 309,264

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Solution

The third proportional to 203,156 and 309,264 is: 470,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,156 : 309,264 = 309,264 : x
  2. Step 2: Convert to fraction form
    203,156/309,264 = 309,264/x
  3. Step 3: Cross multiply
    203,156x = 309,264 × 309,264
  4. Step 4: Simplify right side
    203,156x = 95,644,221,696
  5. Step 5: Solve for x
    x = 95,644,221,696/203,156
  6. Step 6: Final answer
    x = 470,792.01

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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.