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Finding the Fourth Proportional to 350.45, 483.64 and 203.11

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Solution

The fourth proportional to 350.45, 483.64 and 203.11 is: 280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.45 : 483.64 = 203.11 : x
  2. Step 2: Convert to fraction form
    350.45/483.64 = 203.11/x
  3. Step 3: Cross multiply
    350.45x = 483.64 × 203.11
  4. Step 4: Simplify right side
    350.45x = 98,230.40
  5. Step 5: Solve for x
    x = 98,230.40/350.45
  6. Step 6: Final answer
    x = 280.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.