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Finding the Fourth Proportional to 263,238.25, 394,765 and 73,647.68

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Solution

The fourth proportional to 263,238.25, 394,765 and 73,647.68 is: 110,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,238.25 : 394,765 = 73,647.68 : x
  2. Step 2: Convert to fraction form
    263,238.25/394,765 = 73,647.68/x
  3. Step 3: Cross multiply
    263,238.25x = 394,765 × 73,647.68
  4. Step 4: Simplify right side
    263,238.25x = 29,073,526,395.20
  5. Step 5: Solve for x
    x = 29,073,526,395.20/263,238.25
  6. Step 6: Final answer
    x = 110,445.68

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1.5x scale

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.