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Finding the Fourth Proportional to 300.06, 449.28 and 208.54

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Solution

The fourth proportional to 300.06, 449.28 and 208.54 is: 312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.06 : 449.28 = 208.54 : x
  2. Step 2: Convert to fraction form
    300.06/449.28 = 208.54/x
  3. Step 3: Cross multiply
    300.06x = 449.28 × 208.54
  4. Step 4: Simplify right side
    300.06x = 93,692.85
  5. Step 5: Solve for x
    x = 93,692.85/300.06
  6. Step 6: Final answer
    x = 312.25

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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.