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Finding the Fourth Proportional to 171.99, 258.29 and 162.88

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Solution

The fourth proportional to 171.99, 258.29 and 162.88 is: 244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.99 : 258.29 = 162.88 : x
  2. Step 2: Convert to fraction form
    171.99/258.29 = 162.88/x
  3. Step 3: Cross multiply
    171.99x = 258.29 × 162.88
  4. Step 4: Simplify right side
    171.99x = 42,070.28
  5. Step 5: Solve for x
    x = 42,070.28/171.99
  6. Step 6: Final answer
    x = 244.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.