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Finding the Fourth Proportional to 223.41, 333.54 and 188.81

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Solution

The fourth proportional to 223.41, 333.54 and 188.81 is: 281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.41 : 333.54 = 188.81 : x
  2. Step 2: Convert to fraction form
    223.41/333.54 = 188.81/x
  3. Step 3: Cross multiply
    223.41x = 333.54 × 188.81
  4. Step 4: Simplify right side
    223.41x = 62,974.86
  5. Step 5: Solve for x
    x = 62,974.86/223.41
  6. Step 6: Final answer
    x = 281.88

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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.