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Finding the Fourth Proportional to 349.58, 482.02 and 239.12

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Solution

The fourth proportional to 349.58, 482.02 and 239.12 is: 329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.58 : 482.02 = 239.12 : x
  2. Step 2: Convert to fraction form
    349.58/482.02 = 239.12/x
  3. Step 3: Cross multiply
    349.58x = 482.02 × 239.12
  4. Step 4: Simplify right side
    349.58x = 115,260.62
  5. Step 5: Solve for x
    x = 115,260.62/349.58
  6. Step 6: Final answer
    x = 329.71

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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.