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Finding the Fourth Proportional to 241.40, 333.02 and 143.08

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Solution

The fourth proportional to 241.40, 333.02 and 143.08 is: 197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.40 : 333.02 = 143.08 : x
  2. Step 2: Convert to fraction form
    241.40/333.02 = 143.08/x
  3. Step 3: Cross multiply
    241.40x = 333.02 × 143.08
  4. Step 4: Simplify right side
    241.40x = 47,648.50
  5. Step 5: Solve for x
    x = 47,648.50/241.40
  6. Step 6: Final answer
    x = 197.38

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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.