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Finding the Fourth Proportional to 231.05, 318.04 and 175.66

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Solution

The fourth proportional to 231.05, 318.04 and 175.66 is: 241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.05 : 318.04 = 175.66 : x
  2. Step 2: Convert to fraction form
    231.05/318.04 = 175.66/x
  3. Step 3: Cross multiply
    231.05x = 318.04 × 175.66
  4. Step 4: Simplify right side
    231.05x = 55,866.91
  5. Step 5: Solve for x
    x = 55,866.91/231.05
  6. Step 6: Final answer
    x = 241.80

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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.