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Finding the Third Proportional to 69,278 and 151,512

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Solution

The third proportional to 69,278 and 151,512 is: 331,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,278 : 151,512 = 151,512 : x
  2. Step 2: Convert to fraction form
    69,278/151,512 = 151,512/x
  3. Step 3: Cross multiply
    69,278x = 151,512 × 151,512
  4. Step 4: Simplify right side
    69,278x = 22,955,886,144
  5. Step 5: Solve for x
    x = 22,955,886,144/69,278
  6. Step 6: Final answer
    x = 331,358.96

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.