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Finding the Fourth Proportional to 349.92, 482.36 and 239.36

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Solution

The fourth proportional to 349.92, 482.36 and 239.36 is: 329.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.92 : 482.36 = 239.36 : x
  2. Step 2: Convert to fraction form
    349.92/482.36 = 239.36/x
  3. Step 3: Cross multiply
    349.92x = 482.36 × 239.36
  4. Step 4: Simplify right side
    349.92x = 115,454.08
  5. Step 5: Solve for x
    x = 115,454.08/349.92
  6. Step 6: Final answer
    x = 329.94

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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.