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Finding the Fourth Proportional to 358.18, 496.20 and 349.67

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Solution

The fourth proportional to 358.18, 496.20 and 349.67 is: 484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.18 : 496.20 = 349.67 : x
  2. Step 2: Convert to fraction form
    358.18/496.20 = 349.67/x
  3. Step 3: Cross multiply
    358.18x = 496.20 × 349.67
  4. Step 4: Simplify right side
    358.18x = 173,507.49
  5. Step 5: Solve for x
    x = 173,507.49/358.18
  6. Step 6: Final answer
    x = 484.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.