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Finding the Fourth Proportional to 174.58, 242.50 and 171.79

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Solution

The fourth proportional to 174.58, 242.50 and 171.79 is: 238.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.58 : 242.50 = 171.79 : x
  2. Step 2: Convert to fraction form
    174.58/242.50 = 171.79/x
  3. Step 3: Cross multiply
    174.58x = 242.50 × 171.79
  4. Step 4: Simplify right side
    174.58x = 41,659.38
  5. Step 5: Solve for x
    x = 41,659.38/174.58
  6. Step 6: Final answer
    x = 238.62

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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.