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Finding the Third Proportional to 68,921 and 150,148

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Solution

The third proportional to 68,921 and 150,148 is: 327,105.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921 : 150,148 = 150,148 : x
  2. Step 2: Convert to fraction form
    68,921/150,148 = 150,148/x
  3. Step 3: Cross multiply
    68,921x = 150,148 × 150,148
  4. Step 4: Simplify right side
    68,921x = 22,544,421,904
  5. Step 5: Solve for x
    x = 22,544,421,904/68,921
  6. Step 6: Final answer
    x = 327,105.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.