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Finding the Fourth Proportional to 350.97, 484.49 and 220.16

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Solution

The fourth proportional to 350.97, 484.49 and 220.16 is: 303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.97 : 484.49 = 220.16 : x
  2. Step 2: Convert to fraction form
    350.97/484.49 = 220.16/x
  3. Step 3: Cross multiply
    350.97x = 484.49 × 220.16
  4. Step 4: Simplify right side
    350.97x = 106,663.45
  5. Step 5: Solve for x
    x = 106,663.45/350.97
  6. Step 6: Final answer
    x = 303.91

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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.