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Finding the Fourth Proportional to 273.38, 377.26 and 156.94

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Solution

The fourth proportional to 273.38, 377.26 and 156.94 is: 216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.38 : 377.26 = 156.94 : x
  2. Step 2: Convert to fraction form
    273.38/377.26 = 156.94/x
  3. Step 3: Cross multiply
    273.38x = 377.26 × 156.94
  4. Step 4: Simplify right side
    273.38x = 59,205.85
  5. Step 5: Solve for x
    x = 59,205.85/273.38
  6. Step 6: Final answer
    x = 216.57

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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.