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Finding the Fourth Proportional to 349.18, 481.90 and 193.94

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Solution

The fourth proportional to 349.18, 481.90 and 193.94 is: 267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.18 : 481.90 = 193.94 : x
  2. Step 2: Convert to fraction form
    349.18/481.90 = 193.94/x
  3. Step 3: Cross multiply
    349.18x = 481.90 × 193.94
  4. Step 4: Simplify right side
    349.18x = 93,459.69
  5. Step 5: Solve for x
    x = 93,459.69/349.18
  6. Step 6: Final answer
    x = 267.65

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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.