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Finding the Third Proportional to 66,174 and 146,172

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Solution

The third proportional to 66,174 and 146,172 is: 322,879.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,174 : 146,172 = 146,172 : x
  2. Step 2: Convert to fraction form
    66,174/146,172 = 146,172/x
  3. Step 3: Cross multiply
    66,174x = 146,172 × 146,172
  4. Step 4: Simplify right side
    66,174x = 21,366,253,584
  5. Step 5: Solve for x
    x = 21,366,253,584/66,174
  6. Step 6: Final answer
    x = 322,879.89

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.