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Finding the Fourth Proportional to 241.21, 332.76 and 158.32

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Solution

The fourth proportional to 241.21, 332.76 and 158.32 is: 218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.21 : 332.76 = 158.32 : x
  2. Step 2: Convert to fraction form
    241.21/332.76 = 158.32/x
  3. Step 3: Cross multiply
    241.21x = 332.76 × 158.32
  4. Step 4: Simplify right side
    241.21x = 52,682.56
  5. Step 5: Solve for x
    x = 52,682.56/241.21
  6. Step 6: Final answer
    x = 218.41

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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.