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Finding the Fourth Proportional to 349.26, 482.31 and 294.54

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Solution

The fourth proportional to 349.26, 482.31 and 294.54 is: 406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.26 : 482.31 = 294.54 : x
  2. Step 2: Convert to fraction form
    349.26/482.31 = 294.54/x
  3. Step 3: Cross multiply
    349.26x = 482.31 × 294.54
  4. Step 4: Simplify right side
    349.26x = 142,059.59
  5. Step 5: Solve for x
    x = 142,059.59/349.26
  6. Step 6: Final answer
    x = 406.74

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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.