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Finding the Fourth Proportional to 266,830.29, 400,245.44 and 126,512.37

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Solution

The fourth proportional to 266,830.29, 400,245.44 and 126,512.37 is: 189,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,830.29 : 400,245.44 = 126,512.37 : x
  2. Step 2: Convert to fraction form
    266,830.29/400,245.44 = 126,512.37/x
  3. Step 3: Cross multiply
    266,830.29x = 400,245.44 × 126,512.37
  4. Step 4: Simplify right side
    266,830.29x = 50,635,998,563.53
  5. Step 5: Solve for x
    x = 50,635,998,563.53/266,830.29
  6. Step 6: Final answer
    x = 189,768.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.