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Finding the Third Proportional to 143,678 and 305,536

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Solution

The third proportional to 143,678 and 305,536 is: 649,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,678 : 305,536 = 305,536 : x
  2. Step 2: Convert to fraction form
    143,678/305,536 = 305,536/x
  3. Step 3: Cross multiply
    143,678x = 305,536 × 305,536
  4. Step 4: Simplify right side
    143,678x = 93,352,247,296
  5. Step 5: Solve for x
    x = 93,352,247,296/143,678
  6. Step 6: Final answer
    x = 649,732.37

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.