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Finding the Fourth Proportional to 183.42, 276.38 and 173.43

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Solution

The fourth proportional to 183.42, 276.38 and 173.43 is: 261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.42 : 276.38 = 173.43 : x
  2. Step 2: Convert to fraction form
    183.42/276.38 = 173.43/x
  3. Step 3: Cross multiply
    183.42x = 276.38 × 173.43
  4. Step 4: Simplify right side
    183.42x = 47,931.72
  5. Step 5: Solve for x
    x = 47,931.72/183.42
  6. Step 6: Final answer
    x = 261.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.