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Finding the Fourth Proportional to 352.67, 490.04 and 348.87

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Solution

The fourth proportional to 352.67, 490.04 and 348.87 is: 484.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.67 : 490.04 = 348.87 : x
  2. Step 2: Convert to fraction form
    352.67/490.04 = 348.87/x
  3. Step 3: Cross multiply
    352.67x = 490.04 × 348.87
  4. Step 4: Simplify right side
    352.67x = 170,956.93
  5. Step 5: Solve for x
    x = 170,956.93/352.67
  6. Step 6: Final answer
    x = 484.75

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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.