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Finding the Fourth Proportional to 176.80, 263.91 and 164.64

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Solution

The fourth proportional to 176.80, 263.91 and 164.64 is: 245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.80 : 263.91 = 164.64 : x
  2. Step 2: Convert to fraction form
    176.80/263.91 = 164.64/x
  3. Step 3: Cross multiply
    176.80x = 263.91 × 164.64
  4. Step 4: Simplify right side
    176.80x = 43,450.14
  5. Step 5: Solve for x
    x = 43,450.14/176.80
  6. Step 6: Final answer
    x = 245.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.