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Finding the Third Proportional to 81,354 and 149,208

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Solution

The third proportional to 81,354 and 149,208 is: 273,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,354 : 149,208 = 149,208 : x
  2. Step 2: Convert to fraction form
    81,354/149,208 = 149,208/x
  3. Step 3: Cross multiply
    81,354x = 149,208 × 149,208
  4. Step 4: Simplify right side
    81,354x = 22,263,027,264
  5. Step 5: Solve for x
    x = 22,263,027,264/81,354
  6. Step 6: Final answer
    x = 273,656.21

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.