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Finding the Third Proportional to 28,173 and 61,211

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Solution

The third proportional to 28,173 and 61,211 is: 132,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173 : 61,211 = 61,211 : x
  2. Step 2: Convert to fraction form
    28,173/61,211 = 61,211/x
  3. Step 3: Cross multiply
    28,173x = 61,211 × 61,211
  4. Step 4: Simplify right side
    28,173x = 3,746,786,521
  5. Step 5: Solve for x
    x = 3,746,786,521/28,173
  6. Step 6: Final answer
    x = 132,992.10

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.