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Finding the Fourth Proportional to 260.73, 362.05 and 258.57

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Solution

The fourth proportional to 260.73, 362.05 and 258.57 is: 359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.73 : 362.05 = 258.57 : x
  2. Step 2: Convert to fraction form
    260.73/362.05 = 258.57/x
  3. Step 3: Cross multiply
    260.73x = 362.05 × 258.57
  4. Step 4: Simplify right side
    260.73x = 93,614.62
  5. Step 5: Solve for x
    x = 93,614.62/260.73
  6. Step 6: Final answer
    x = 359.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.