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Finding the Fourth Proportional to 176.13, 263.09 and 155.97

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Solution

The fourth proportional to 176.13, 263.09 and 155.97 is: 232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.13 : 263.09 = 155.97 : x
  2. Step 2: Convert to fraction form
    176.13/263.09 = 155.97/x
  3. Step 3: Cross multiply
    176.13x = 263.09 × 155.97
  4. Step 4: Simplify right side
    176.13x = 41,034.54
  5. Step 5: Solve for x
    x = 41,034.54/176.13
  6. Step 6: Final answer
    x = 232.98

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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.