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Finding the Fourth Proportional to 350.82, 484.20 and 203.49

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Solution

The fourth proportional to 350.82, 484.20 and 203.49 is: 280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.82 : 484.20 = 203.49 : x
  2. Step 2: Convert to fraction form
    350.82/484.20 = 203.49/x
  3. Step 3: Cross multiply
    350.82x = 484.20 × 203.49
  4. Step 4: Simplify right side
    350.82x = 98,529.86
  5. Step 5: Solve for x
    x = 98,529.86/350.82
  6. Step 6: Final answer
    x = 280.86

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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.