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Finding the Fourth Proportional to 263,118.45, 394,702.62 and 73,578.81

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Solution

The fourth proportional to 263,118.45, 394,702.62 and 73,578.81 is: 110,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,118.45 : 394,702.62 = 73,578.81 : x
  2. Step 2: Convert to fraction form
    263,118.45/394,702.62 = 73,578.81/x
  3. Step 3: Cross multiply
    263,118.45x = 394,702.62 × 73,578.81
  4. Step 4: Simplify right side
    263,118.45x = 29,041,749,083.48
  5. Step 5: Solve for x
    x = 29,041,749,083.48/263,118.45
  6. Step 6: Final answer
    x = 110,375.19

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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.