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Finding the Fourth Proportional to 482.44, 665.22 and 349.39

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Solution

The fourth proportional to 482.44, 665.22 and 349.39 is: 481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.44 : 665.22 = 349.39 : x
  2. Step 2: Convert to fraction form
    482.44/665.22 = 349.39/x
  3. Step 3: Cross multiply
    482.44x = 665.22 × 349.39
  4. Step 4: Simplify right side
    482.44x = 232,425.02
  5. Step 5: Solve for x
    x = 232,425.02/482.44
  6. Step 6: Final answer
    x = 481.77

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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.