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Finding the Fourth Proportional to 251,734, 377,601 and 103,993.84

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Solution

The fourth proportional to 251,734, 377,601 and 103,993.84 is: 155,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,734 : 377,601 = 103,993.84 : x
  2. Step 2: Convert to fraction form
    251,734/377,601 = 103,993.84/x
  3. Step 3: Cross multiply
    251,734x = 377,601 × 103,993.84
  4. Step 4: Simplify right side
    251,734x = 39,268,177,977.84
  5. Step 5: Solve for x
    x = 39,268,177,977.84/251,734
  6. Step 6: Final answer
    x = 155,990.76

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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.