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Finding the Fourth Proportional to 260.09, 358.93 and 160.54

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Solution

The fourth proportional to 260.09, 358.93 and 160.54 is: 221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.09 : 358.93 = 160.54 : x
  2. Step 2: Convert to fraction form
    260.09/358.93 = 160.54/x
  3. Step 3: Cross multiply
    260.09x = 358.93 × 160.54
  4. Step 4: Simplify right side
    260.09x = 57,622.62
  5. Step 5: Solve for x
    x = 57,622.62/260.09
  6. Step 6: Final answer
    x = 221.55

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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.