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Finding the Fourth Proportional to 273.44, 376.85 and 211.48

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Solution

The fourth proportional to 273.44, 376.85 and 211.48 is: 291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.44 : 376.85 = 211.48 : x
  2. Step 2: Convert to fraction form
    273.44/376.85 = 211.48/x
  3. Step 3: Cross multiply
    273.44x = 376.85 × 211.48
  4. Step 4: Simplify right side
    273.44x = 79,695.82
  5. Step 5: Solve for x
    x = 79,695.82/273.44
  6. Step 6: Final answer
    x = 291.45

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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.