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Finding the Third Proportional to 144,467 and 311,167

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Solution

The third proportional to 144,467 and 311,167 is: 670,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,467 : 311,167 = 311,167 : x
  2. Step 2: Convert to fraction form
    144,467/311,167 = 311,167/x
  3. Step 3: Cross multiply
    144,467x = 311,167 × 311,167
  4. Step 4: Simplify right side
    144,467x = 96,824,901,889
  5. Step 5: Solve for x
    x = 96,824,901,889/144,467
  6. Step 6: Final answer
    x = 670,221.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.