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Finding the Third Proportional to 141,777 and 215,622

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Solution

The third proportional to 141,777 and 215,622 is: 327,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777 : 215,622 = 215,622 : x
  2. Step 2: Convert to fraction form
    141,777/215,622 = 215,622/x
  3. Step 3: Cross multiply
    141,777x = 215,622 × 215,622
  4. Step 4: Simplify right side
    141,777x = 46,492,846,884
  5. Step 5: Solve for x
    x = 46,492,846,884/141,777
  6. Step 6: Final answer
    x = 327,929.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.