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Finding the Fourth Proportional to 221.24, 333.16 and 200.60

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Solution

The fourth proportional to 221.24, 333.16 and 200.60 is: 302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.24 : 333.16 = 200.60 : x
  2. Step 2: Convert to fraction form
    221.24/333.16 = 200.60/x
  3. Step 3: Cross multiply
    221.24x = 333.16 × 200.60
  4. Step 4: Simplify right side
    221.24x = 66,831.90
  5. Step 5: Solve for x
    x = 66,831.90/221.24
  6. Step 6: Final answer
    x = 302.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.