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Finding the Fourth Proportional to 223.71, 308.91 and 177.34

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Solution

The fourth proportional to 223.71, 308.91 and 177.34 is: 244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.71 : 308.91 = 177.34 : x
  2. Step 2: Convert to fraction form
    223.71/308.91 = 177.34/x
  3. Step 3: Cross multiply
    223.71x = 308.91 × 177.34
  4. Step 4: Simplify right side
    223.71x = 54,782.57
  5. Step 5: Solve for x
    x = 54,782.57/223.71
  6. Step 6: Final answer
    x = 244.88

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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.