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Finding the Fourth Proportional to 176.46, 264.69 and 80.25

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Solution

The fourth proportional to 176.46, 264.69 and 80.25 is: 120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.46 : 264.69 = 80.25 : x
  2. Step 2: Convert to fraction form
    176.46/264.69 = 80.25/x
  3. Step 3: Cross multiply
    176.46x = 264.69 × 80.25
  4. Step 4: Simplify right side
    176.46x = 21,241.37
  5. Step 5: Solve for x
    x = 21,241.37/176.46
  6. Step 6: Final answer
    x = 120.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.