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Finding the Fourth Proportional to 173.56, 238.80 and 159.88

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Solution

The fourth proportional to 173.56, 238.80 and 159.88 is: 219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.56 : 238.80 = 159.88 : x
  2. Step 2: Convert to fraction form
    173.56/238.80 = 159.88/x
  3. Step 3: Cross multiply
    173.56x = 238.80 × 159.88
  4. Step 4: Simplify right side
    173.56x = 38,179.34
  5. Step 5: Solve for x
    x = 38,179.34/173.56
  6. Step 6: Final answer
    x = 219.98

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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.