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Finding the Fourth Proportional to 349.75, 482.49 and 225.37

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Solution

The fourth proportional to 349.75, 482.49 and 225.37 is: 310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.75 : 482.49 = 225.37 : x
  2. Step 2: Convert to fraction form
    349.75/482.49 = 225.37/x
  3. Step 3: Cross multiply
    349.75x = 482.49 × 225.37
  4. Step 4: Simplify right side
    349.75x = 108,738.77
  5. Step 5: Solve for x
    x = 108,738.77/349.75
  6. Step 6: Final answer
    x = 310.90

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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.