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Finding the Fourth Proportional to 262,607.78, 394,010.94 and 102,797.92

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Solution

The fourth proportional to 262,607.78, 394,010.94 and 102,797.92 is: 154,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,607.78 : 394,010.94 = 102,797.92 : x
  2. Step 2: Convert to fraction form
    262,607.78/394,010.94 = 102,797.92/x
  3. Step 3: Cross multiply
    262,607.78x = 394,010.94 × 102,797.92
  4. Step 4: Simplify right side
    262,607.78x = 40,503,505,389.01
  5. Step 5: Solve for x
    x = 40,503,505,389.01/262,607.78
  6. Step 6: Final answer
    x = 154,235.74

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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.