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Finding the Fourth Proportional to 244.53, 335.81 and 209.56

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Solution

The fourth proportional to 244.53, 335.81 and 209.56 is: 287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.53 : 335.81 = 209.56 : x
  2. Step 2: Convert to fraction form
    244.53/335.81 = 209.56/x
  3. Step 3: Cross multiply
    244.53x = 335.81 × 209.56
  4. Step 4: Simplify right side
    244.53x = 70,372.34
  5. Step 5: Solve for x
    x = 70,372.34/244.53
  6. Step 6: Final answer
    x = 287.79

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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.