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Finding the Fourth Proportional to 223.88, 334.13 and 191.48

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Solution

The fourth proportional to 223.88, 334.13 and 191.48 is: 285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.88 : 334.13 = 191.48 : x
  2. Step 2: Convert to fraction form
    223.88/334.13 = 191.48/x
  3. Step 3: Cross multiply
    223.88x = 334.13 × 191.48
  4. Step 4: Simplify right side
    223.88x = 63,979.21
  5. Step 5: Solve for x
    x = 63,979.21/223.88
  6. Step 6: Final answer
    x = 285.77

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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.