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Finding the Third Proportional to 98,647 and 215,745

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Solution

The third proportional to 98,647 and 215,745 is: 471,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,647 : 215,745 = 215,745 : x
  2. Step 2: Convert to fraction form
    98,647/215,745 = 215,745/x
  3. Step 3: Cross multiply
    98,647x = 215,745 × 215,745
  4. Step 4: Simplify right side
    98,647x = 46,545,905,025
  5. Step 5: Solve for x
    x = 46,545,905,025/98,647
  6. Step 6: Final answer
    x = 471,843.09

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.