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Finding the Fourth Proportional to 272.82, 376.65 and 226.19

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Solution

The fourth proportional to 272.82, 376.65 and 226.19 is: 312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.82 : 376.65 = 226.19 : x
  2. Step 2: Convert to fraction form
    272.82/376.65 = 226.19/x
  3. Step 3: Cross multiply
    272.82x = 376.65 × 226.19
  4. Step 4: Simplify right side
    272.82x = 85,195.41
  5. Step 5: Solve for x
    x = 85,195.41/272.82
  6. Step 6: Final answer
    x = 312.28

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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.