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Finding the Third Proportional to 112,578 and 172,611

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Solution

The third proportional to 112,578 and 172,611 is: 264,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,578 : 172,611 = 172,611 : x
  2. Step 2: Convert to fraction form
    112,578/172,611 = 172,611/x
  3. Step 3: Cross multiply
    112,578x = 172,611 × 172,611
  4. Step 4: Simplify right side
    112,578x = 29,794,557,321
  5. Step 5: Solve for x
    x = 29,794,557,321/112,578
  6. Step 6: Final answer
    x = 264,657.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.