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Finding the Fourth Proportional to 176.13, 263.93 and 103.82

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Solution

The fourth proportional to 176.13, 263.93 and 103.82 is: 155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.13 : 263.93 = 103.82 : x
  2. Step 2: Convert to fraction form
    176.13/263.93 = 103.82/x
  3. Step 3: Cross multiply
    176.13x = 263.93 × 103.82
  4. Step 4: Simplify right side
    176.13x = 27,399.37
  5. Step 5: Solve for x
    x = 27,399.37/176.13
  6. Step 6: Final answer
    x = 155.56

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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.