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Finding the Fourth Proportional to 266,763.89, 400,195.11 and 84,440.59

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Solution

The fourth proportional to 266,763.89, 400,195.11 and 84,440.59 is: 126,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,763.89 : 400,195.11 = 84,440.59 : x
  2. Step 2: Convert to fraction form
    266,763.89/400,195.11 = 84,440.59/x
  3. Step 3: Cross multiply
    266,763.89x = 400,195.11 × 84,440.59
  4. Step 4: Simplify right side
    266,763.89x = 33,792,709,202.54
  5. Step 5: Solve for x
    x = 33,792,709,202.54/266,763.89
  6. Step 6: Final answer
    x = 126,676.47

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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.