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Finding the Fourth Proportional to 241.42, 333.19 and 148.21

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Solution

The fourth proportional to 241.42, 333.19 and 148.21 is: 204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.42 : 333.19 = 148.21 : x
  2. Step 2: Convert to fraction form
    241.42/333.19 = 148.21/x
  3. Step 3: Cross multiply
    241.42x = 333.19 × 148.21
  4. Step 4: Simplify right side
    241.42x = 49,382.09
  5. Step 5: Solve for x
    x = 49,382.09/241.42
  6. Step 6: Final answer
    x = 204.55

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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.