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Finding the Fourth Proportional to 260.39, 359.30 and 167.22

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Solution

The fourth proportional to 260.39, 359.30 and 167.22 is: 230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.39 : 359.30 = 167.22 : x
  2. Step 2: Convert to fraction form
    260.39/359.30 = 167.22/x
  3. Step 3: Cross multiply
    260.39x = 359.30 × 167.22
  4. Step 4: Simplify right side
    260.39x = 60,081.31
  5. Step 5: Solve for x
    x = 60,081.31/260.39
  6. Step 6: Final answer
    x = 230.74

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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.