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Finding the Fourth Proportional to 183.96, 276.06 and 102.87

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Solution

The fourth proportional to 183.96, 276.06 and 102.87 is: 154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.96 : 276.06 = 102.87 : x
  2. Step 2: Convert to fraction form
    183.96/276.06 = 102.87/x
  3. Step 3: Cross multiply
    183.96x = 276.06 × 102.87
  4. Step 4: Simplify right side
    183.96x = 28,398.29
  5. Step 5: Solve for x
    x = 28,398.29/183.96
  6. Step 6: Final answer
    x = 154.37

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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.