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Finding the Fourth Proportional to 240.96, 332.82 and 208.20

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Solution

The fourth proportional to 240.96, 332.82 and 208.20 is: 287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.96 : 332.82 = 208.20 : x
  2. Step 2: Convert to fraction form
    240.96/332.82 = 208.20/x
  3. Step 3: Cross multiply
    240.96x = 332.82 × 208.20
  4. Step 4: Simplify right side
    240.96x = 69,293.12
  5. Step 5: Solve for x
    x = 69,293.12/240.96
  6. Step 6: Final answer
    x = 287.57

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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.