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Finding the Third Proportional to 28,215 and 61,292.25

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Solution

The third proportional to 28,215 and 61,292.25 is: 133,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215 : 61,292.25 = 61,292.25 : x
  2. Step 2: Convert to fraction form
    28,215/61,292.25 = 61,292.25/x
  3. Step 3: Cross multiply
    28,215x = 61,292.25 × 61,292.25
  4. Step 4: Simplify right side
    28,215x = 3,756,739,910.06
  5. Step 5: Solve for x
    x = 3,756,739,910.06/28,215
  6. Step 6: Final answer
    x = 133,146.90

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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.