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Finding the Fourth Proportional to 262,792.74, 394,183.56 and 85,299.46

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Solution

The fourth proportional to 262,792.74, 394,183.56 and 85,299.46 is: 127,947.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,792.74 : 394,183.56 = 85,299.46 : x
  2. Step 2: Convert to fraction form
    262,792.74/394,183.56 = 85,299.46/x
  3. Step 3: Cross multiply
    262,792.74x = 394,183.56 × 85,299.46
  4. Step 4: Simplify right side
    262,792.74x = 33,623,644,808.88
  5. Step 5: Solve for x
    x = 33,623,644,808.88/262,792.74
  6. Step 6: Final answer
    x = 127,947.39

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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.