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Finding the Third Proportional to 243,072 and 323,568

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Solution

The third proportional to 243,072 and 323,568 is: 430,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,072 : 323,568 = 323,568 : x
  2. Step 2: Convert to fraction form
    243,072/323,568 = 323,568/x
  3. Step 3: Cross multiply
    243,072x = 323,568 × 323,568
  4. Step 4: Simplify right side
    243,072x = 104,696,250,624
  5. Step 5: Solve for x
    x = 104,696,250,624/243,072
  6. Step 6: Final answer
    x = 430,721.15

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.