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Finding the Fourth Proportional to 203,481.96, 280,770.89 and 135,600.27

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Solution

The fourth proportional to 203,481.96, 280,770.89 and 135,600.27 is: 187,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,481.96 : 280,770.89 = 135,600.27 : x
  2. Step 2: Convert to fraction form
    203,481.96/280,770.89 = 135,600.27/x
  3. Step 3: Cross multiply
    203,481.96x = 280,770.89 × 135,600.27
  4. Step 4: Simplify right side
    203,481.96x = 38,072,607,814.14
  5. Step 5: Solve for x
    x = 38,072,607,814.14/203,481.96
  6. Step 6: Final answer
    x = 187,105.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.