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Finding the Fourth Proportional to 273.94, 377.90 and 163.41

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Solution

The fourth proportional to 273.94, 377.90 and 163.41 is: 225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.94 : 377.90 = 163.41 : x
  2. Step 2: Convert to fraction form
    273.94/377.90 = 163.41/x
  3. Step 3: Cross multiply
    273.94x = 377.90 × 163.41
  4. Step 4: Simplify right side
    273.94x = 61,752.64
  5. Step 5: Solve for x
    x = 61,752.64/273.94
  6. Step 6: Final answer
    x = 225.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.