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Finding the Fourth Proportional to 176.91, 244.17 and 103.23

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Solution

The fourth proportional to 176.91, 244.17 and 103.23 is: 142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.91 : 244.17 = 103.23 : x
  2. Step 2: Convert to fraction form
    176.91/244.17 = 103.23/x
  3. Step 3: Cross multiply
    176.91x = 244.17 × 103.23
  4. Step 4: Simplify right side
    176.91x = 25,205.67
  5. Step 5: Solve for x
    x = 25,205.67/176.91
  6. Step 6: Final answer
    x = 142.48

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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.