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Finding the Fourth Proportional to 891.33, 1,336.85 and 241.92

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Solution

The fourth proportional to 891.33, 1,336.85 and 241.92 is: 362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    891.33 : 1,336.85 = 241.92 : x
  2. Step 2: Convert to fraction form
    891.33/1,336.85 = 241.92/x
  3. Step 3: Cross multiply
    891.33x = 1,336.85 × 241.92
  4. Step 4: Simplify right side
    891.33x = 323,409.54
  5. Step 5: Solve for x
    x = 323,409.54/891.33
  6. Step 6: Final answer
    x = 362.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.