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Finding the Fourth Proportional to 244.20, 366.63 and 208.38

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Solution

The fourth proportional to 244.20, 366.63 and 208.38 is: 312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.20 : 366.63 = 208.38 : x
  2. Step 2: Convert to fraction form
    244.20/366.63 = 208.38/x
  3. Step 3: Cross multiply
    244.20x = 366.63 × 208.38
  4. Step 4: Simplify right side
    244.20x = 76,398.36
  5. Step 5: Solve for x
    x = 76,398.36/244.20
  6. Step 6: Final answer
    x = 312.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.