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Finding the Fourth Proportional to 349.61, 482.22 and 239.13

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Solution

The fourth proportional to 349.61, 482.22 and 239.13 is: 329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.61 : 482.22 = 239.13 : x
  2. Step 2: Convert to fraction form
    349.61/482.22 = 239.13/x
  3. Step 3: Cross multiply
    349.61x = 482.22 × 239.13
  4. Step 4: Simplify right side
    349.61x = 115,313.27
  5. Step 5: Solve for x
    x = 115,313.27/349.61
  6. Step 6: Final answer
    x = 329.84

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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.