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Finding the Fourth Proportional to 175.57, 243.61 and 171.92

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Solution

The fourth proportional to 175.57, 243.61 and 171.92 is: 238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.57 : 243.61 = 171.92 : x
  2. Step 2: Convert to fraction form
    175.57/243.61 = 171.92/x
  3. Step 3: Cross multiply
    175.57x = 243.61 × 171.92
  4. Step 4: Simplify right side
    175.57x = 41,881.61
  5. Step 5: Solve for x
    x = 41,881.61/175.57
  6. Step 6: Final answer
    x = 238.55

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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.