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Finding the Fourth Proportional to 262,675.66, 394,013.78 and 73,136.44

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Solution

The fourth proportional to 262,675.66, 394,013.78 and 73,136.44 is: 109,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,675.66 : 394,013.78 = 73,136.44 : x
  2. Step 2: Convert to fraction form
    262,675.66/394,013.78 = 73,136.44/x
  3. Step 3: Cross multiply
    262,675.66x = 394,013.78 × 73,136.44
  4. Step 4: Simplify right side
    262,675.66x = 28,816,765,180.14
  5. Step 5: Solve for x
    x = 28,816,765,180.14/262,675.66
  6. Step 6: Final answer
    x = 109,704.74

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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.