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Finding the Fourth Proportional to 255.49, 352.49 and 162.34

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Solution

The fourth proportional to 255.49, 352.49 and 162.34 is: 223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.49 : 352.49 = 162.34 : x
  2. Step 2: Convert to fraction form
    255.49/352.49 = 162.34/x
  3. Step 3: Cross multiply
    255.49x = 352.49 × 162.34
  4. Step 4: Simplify right side
    255.49x = 57,223.23
  5. Step 5: Solve for x
    x = 57,223.23/255.49
  6. Step 6: Final answer
    x = 223.97

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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.