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Finding the Fourth Proportional to 273.44, 377.49 and 211.13

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Solution

The fourth proportional to 273.44, 377.49 and 211.13 is: 291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.44 : 377.49 = 211.13 : x
  2. Step 2: Convert to fraction form
    273.44/377.49 = 211.13/x
  3. Step 3: Cross multiply
    273.44x = 377.49 × 211.13
  4. Step 4: Simplify right side
    273.44x = 79,700.41
  5. Step 5: Solve for x
    x = 79,700.41/273.44
  6. Step 6: Final answer
    x = 291.47

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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.