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Finding the Fourth Proportional to 262,840.47, 394,255.02 and 73,295.78

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Solution

The fourth proportional to 262,840.47, 394,255.02 and 73,295.78 is: 109,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,840.47 : 394,255.02 = 73,295.78 : x
  2. Step 2: Convert to fraction form
    262,840.47/394,255.02 = 73,295.78/x
  3. Step 3: Cross multiply
    262,840.47x = 394,255.02 × 73,295.78
  4. Step 4: Simplify right side
    262,840.47x = 28,897,229,209.82
  5. Step 5: Solve for x
    x = 28,897,229,209.82/262,840.47
  6. Step 6: Final answer
    x = 109,942.09

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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.