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Finding the Third Proportional to 167,287 and 342,728

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Solution

The third proportional to 167,287 and 342,728 is: 702,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,287 : 342,728 = 342,728 : x
  2. Step 2: Convert to fraction form
    167,287/342,728 = 342,728/x
  3. Step 3: Cross multiply
    167,287x = 342,728 × 342,728
  4. Step 4: Simplify right side
    167,287x = 117,462,481,984
  5. Step 5: Solve for x
    x = 117,462,481,984/167,287
  6. Step 6: Final answer
    x = 702,161.45

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.