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Finding the Fourth Proportional to 350.84, 484.11 and 203.45

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Solution

The fourth proportional to 350.84, 484.11 and 203.45 is: 280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.84 : 484.11 = 203.45 : x
  2. Step 2: Convert to fraction form
    350.84/484.11 = 203.45/x
  3. Step 3: Cross multiply
    350.84x = 484.11 × 203.45
  4. Step 4: Simplify right side
    350.84x = 98,493.90
  5. Step 5: Solve for x
    x = 98,493.90/350.84
  6. Step 6: Final answer
    x = 280.74

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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.