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Finding the Fourth Proportional to 275.16, 376.83 and 271.56

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Solution

The fourth proportional to 275.16, 376.83 and 271.56 is: 371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.16 : 376.83 = 271.56 : x
  2. Step 2: Convert to fraction form
    275.16/376.83 = 271.56/x
  3. Step 3: Cross multiply
    275.16x = 376.83 × 271.56
  4. Step 4: Simplify right side
    275.16x = 102,331.95
  5. Step 5: Solve for x
    x = 102,331.95/275.16
  6. Step 6: Final answer
    x = 371.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.