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Finding the Fourth Proportional to 380.52, 569.39 and 226.52

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Solution

The fourth proportional to 380.52, 569.39 and 226.52 is: 338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.52 : 569.39 = 226.52 : x
  2. Step 2: Convert to fraction form
    380.52/569.39 = 226.52/x
  3. Step 3: Cross multiply
    380.52x = 569.39 × 226.52
  4. Step 4: Simplify right side
    380.52x = 128,978.22
  5. Step 5: Solve for x
    x = 128,978.22/380.52
  6. Step 6: Final answer
    x = 338.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.