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Finding the Fourth Proportional to 412.39, 615.22 and 350.83

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Solution

The fourth proportional to 412.39, 615.22 and 350.83 is: 523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.39 : 615.22 = 350.83 : x
  2. Step 2: Convert to fraction form
    412.39/615.22 = 350.83/x
  3. Step 3: Cross multiply
    412.39x = 615.22 × 350.83
  4. Step 4: Simplify right side
    412.39x = 215,837.63
  5. Step 5: Solve for x
    x = 215,837.63/412.39
  6. Step 6: Final answer
    x = 523.38

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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.