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Finding the Fourth Proportional to 350.49, 483.74 and 203.11

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Solution

The fourth proportional to 350.49, 483.74 and 203.11 is: 280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.49 : 483.74 = 203.11 : x
  2. Step 2: Convert to fraction form
    350.49/483.74 = 203.11/x
  3. Step 3: Cross multiply
    350.49x = 483.74 × 203.11
  4. Step 4: Simplify right side
    350.49x = 98,250.97
  5. Step 5: Solve for x
    x = 98,250.97/350.49
  6. Step 6: Final answer
    x = 280.32

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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.