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Finding the Fourth Proportional to 260.62, 359.23 and 213.91

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Solution

The fourth proportional to 260.62, 359.23 and 213.91 is: 294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.62 : 359.23 = 213.91 : x
  2. Step 2: Convert to fraction form
    260.62/359.23 = 213.91/x
  3. Step 3: Cross multiply
    260.62x = 359.23 × 213.91
  4. Step 4: Simplify right side
    260.62x = 76,842.89
  5. Step 5: Solve for x
    x = 76,842.89/260.62
  6. Step 6: Final answer
    x = 294.85

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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.