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Finding the Fourth Proportional to 176.44, 244.60 and 165.40

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Solution

The fourth proportional to 176.44, 244.60 and 165.40 is: 229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.44 : 244.60 = 165.40 : x
  2. Step 2: Convert to fraction form
    176.44/244.60 = 165.40/x
  3. Step 3: Cross multiply
    176.44x = 244.60 × 165.40
  4. Step 4: Simplify right side
    176.44x = 40,456.84
  5. Step 5: Solve for x
    x = 40,456.84/176.44
  6. Step 6: Final answer
    x = 229.30

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.