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Finding the Fourth Proportional to 220.77, 329.01 and 204.75

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Solution

The fourth proportional to 220.77, 329.01 and 204.75 is: 305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.77 : 329.01 = 204.75 : x
  2. Step 2: Convert to fraction form
    220.77/329.01 = 204.75/x
  3. Step 3: Cross multiply
    220.77x = 329.01 × 204.75
  4. Step 4: Simplify right side
    220.77x = 67,364.80
  5. Step 5: Solve for x
    x = 67,364.80/220.77
  6. Step 6: Final answer
    x = 305.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.