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Finding the Fourth Proportional to 240.08, 330.62 and 208.94

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Solution

The fourth proportional to 240.08, 330.62 and 208.94 is: 287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.08 : 330.62 = 208.94 : x
  2. Step 2: Convert to fraction form
    240.08/330.62 = 208.94/x
  3. Step 3: Cross multiply
    240.08x = 330.62 × 208.94
  4. Step 4: Simplify right side
    240.08x = 69,077.05
  5. Step 5: Solve for x
    x = 69,077.05/240.08
  6. Step 6: Final answer
    x = 287.73

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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.