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Finding the Fourth Proportional to 260.54, 359.34 and 225.98

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Solution

The fourth proportional to 260.54, 359.34 and 225.98 is: 311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.54 : 359.34 = 225.98 : x
  2. Step 2: Convert to fraction form
    260.54/359.34 = 225.98/x
  3. Step 3: Cross multiply
    260.54x = 359.34 × 225.98
  4. Step 4: Simplify right side
    260.54x = 81,203.65
  5. Step 5: Solve for x
    x = 81,203.65/260.54
  6. Step 6: Final answer
    x = 311.67

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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.