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Finding the Third Proportional to 69,651 and 151,911

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Solution

The third proportional to 69,651 and 151,911 is: 331,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,651 : 151,911 = 151,911 : x
  2. Step 2: Convert to fraction form
    69,651/151,911 = 151,911/x
  3. Step 3: Cross multiply
    69,651x = 151,911 × 151,911
  4. Step 4: Simplify right side
    69,651x = 23,076,951,921
  5. Step 5: Solve for x
    x = 23,076,951,921/69,651
  6. Step 6: Final answer
    x = 331,322.62

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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.