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Finding the Fourth Proportional to 350.86, 484.17 and 203.42

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Solution

The fourth proportional to 350.86, 484.17 and 203.42 is: 280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.86 : 484.17 = 203.42 : x
  2. Step 2: Convert to fraction form
    350.86/484.17 = 203.42/x
  3. Step 3: Cross multiply
    350.86x = 484.17 × 203.42
  4. Step 4: Simplify right side
    350.86x = 98,489.86
  5. Step 5: Solve for x
    x = 98,489.86/350.86
  6. Step 6: Final answer
    x = 280.71

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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.