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Finding the Fourth Proportional to 241.66, 333.24 and 206.80

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Solution

The fourth proportional to 241.66, 333.24 and 206.80 is: 285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.66 : 333.24 = 206.80 : x
  2. Step 2: Convert to fraction form
    241.66/333.24 = 206.80/x
  3. Step 3: Cross multiply
    241.66x = 333.24 × 206.80
  4. Step 4: Simplify right side
    241.66x = 68,915.75
  5. Step 5: Solve for x
    x = 68,915.75/241.66
  6. Step 6: Final answer
    x = 285.18

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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.