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Finding the Fourth Proportional to 348.89, 481.47 and 193.64

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Solution

The fourth proportional to 348.89, 481.47 and 193.64 is: 267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.89 : 481.47 = 193.64 : x
  2. Step 2: Convert to fraction form
    348.89/481.47 = 193.64/x
  3. Step 3: Cross multiply
    348.89x = 481.47 × 193.64
  4. Step 4: Simplify right side
    348.89x = 93,231.85
  5. Step 5: Solve for x
    x = 93,231.85/348.89
  6. Step 6: Final answer
    x = 267.22

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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.