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Finding the Fourth Proportional to 178.88, 247.81 and 174.63

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Solution

The fourth proportional to 178.88, 247.81 and 174.63 is: 241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.88 : 247.81 = 174.63 : x
  2. Step 2: Convert to fraction form
    178.88/247.81 = 174.63/x
  3. Step 3: Cross multiply
    178.88x = 247.81 × 174.63
  4. Step 4: Simplify right side
    178.88x = 43,275.06
  5. Step 5: Solve for x
    x = 43,275.06/178.88
  6. Step 6: Final answer
    x = 241.92

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.