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Finding the Fourth Proportional to 349.52, 520.28 and 344.33

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Solution

The fourth proportional to 349.52, 520.28 and 344.33 is: 512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.52 : 520.28 = 344.33 : x
  2. Step 2: Convert to fraction form
    349.52/520.28 = 344.33/x
  3. Step 3: Cross multiply
    349.52x = 520.28 × 344.33
  4. Step 4: Simplify right side
    349.52x = 179,148.01
  5. Step 5: Solve for x
    x = 179,148.01/349.52
  6. Step 6: Final answer
    x = 512.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.