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Finding the Fourth Proportional to 352.29, 489.52 and 348.49

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Solution

The fourth proportional to 352.29, 489.52 and 348.49 is: 484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.29 : 489.52 = 348.49 : x
  2. Step 2: Convert to fraction form
    352.29/489.52 = 348.49/x
  3. Step 3: Cross multiply
    352.29x = 489.52 × 348.49
  4. Step 4: Simplify right side
    352.29x = 170,592.82
  5. Step 5: Solve for x
    x = 170,592.82/352.29
  6. Step 6: Final answer
    x = 484.24

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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.