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Finding the Fourth Proportional to 171.86, 237.18 and 160.88

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Solution

The fourth proportional to 171.86, 237.18 and 160.88 is: 222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.86 : 237.18 = 160.88 : x
  2. Step 2: Convert to fraction form
    171.86/237.18 = 160.88/x
  3. Step 3: Cross multiply
    171.86x = 237.18 × 160.88
  4. Step 4: Simplify right side
    171.86x = 38,157.52
  5. Step 5: Solve for x
    x = 38,157.52/171.86
  6. Step 6: Final answer
    x = 222.03

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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.