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Finding the Third Proportional to 154,510 and 231,611

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Solution

The third proportional to 154,510 and 231,611 is: 347,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,510 : 231,611 = 231,611 : x
  2. Step 2: Convert to fraction form
    154,510/231,611 = 231,611/x
  3. Step 3: Cross multiply
    154,510x = 231,611 × 231,611
  4. Step 4: Simplify right side
    154,510x = 53,643,655,321
  5. Step 5: Solve for x
    x = 53,643,655,321/154,510
  6. Step 6: Final answer
    x = 347,185.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.