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Finding the Fourth Proportional to 260.21, 359.34 and 173.14

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Solution

The fourth proportional to 260.21, 359.34 and 173.14 is: 239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.21 : 359.34 = 173.14 : x
  2. Step 2: Convert to fraction form
    260.21/359.34 = 173.14/x
  3. Step 3: Cross multiply
    260.21x = 359.34 × 173.14
  4. Step 4: Simplify right side
    260.21x = 62,214.58
  5. Step 5: Solve for x
    x = 62,214.58/260.21
  6. Step 6: Final answer
    x = 239.09

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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.