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Finding the Third Proportional to 68,808 and 149,196

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Solution

The third proportional to 68,808 and 149,196 is: 323,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808 : 149,196 = 149,196 : x
  2. Step 2: Convert to fraction form
    68,808/149,196 = 149,196/x
  3. Step 3: Cross multiply
    68,808x = 149,196 × 149,196
  4. Step 4: Simplify right side
    68,808x = 22,259,446,416
  5. Step 5: Solve for x
    x = 22,259,446,416/68,808
  6. Step 6: Final answer
    x = 323,500.85

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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.