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Finding the Fourth Proportional to 181.40, 269.78 and 176.54

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Solution

The fourth proportional to 181.40, 269.78 and 176.54 is: 262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.40 : 269.78 = 176.54 : x
  2. Step 2: Convert to fraction form
    181.40/269.78 = 176.54/x
  3. Step 3: Cross multiply
    181.40x = 269.78 × 176.54
  4. Step 4: Simplify right side
    181.40x = 47,624.73
  5. Step 5: Solve for x
    x = 47,624.73/181.40
  6. Step 6: Final answer
    x = 262.55

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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.