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Finding the Fourth Proportional to 233.10, 321.75 and 167.70

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Solution

The fourth proportional to 233.10, 321.75 and 167.70 is: 231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.10 : 321.75 = 167.70 : x
  2. Step 2: Convert to fraction form
    233.10/321.75 = 167.70/x
  3. Step 3: Cross multiply
    233.10x = 321.75 × 167.70
  4. Step 4: Simplify right side
    233.10x = 53,957.48
  5. Step 5: Solve for x
    x = 53,957.48/233.10
  6. Step 6: Final answer
    x = 231.48

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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.