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Finding the Third Proportional to 129,575 and 199,896

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Solution

The third proportional to 129,575 and 199,896 is: 308,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,575 : 199,896 = 199,896 : x
  2. Step 2: Convert to fraction form
    129,575/199,896 = 199,896/x
  3. Step 3: Cross multiply
    129,575x = 199,896 × 199,896
  4. Step 4: Simplify right side
    129,575x = 39,958,410,816
  5. Step 5: Solve for x
    x = 39,958,410,816/129,575
  6. Step 6: Final answer
    x = 308,380.56

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.