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Finding the Fourth Proportional to 183.67, 276.47 and 129.94

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Solution

The fourth proportional to 183.67, 276.47 and 129.94 is: 195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.67 : 276.47 = 129.94 : x
  2. Step 2: Convert to fraction form
    183.67/276.47 = 129.94/x
  3. Step 3: Cross multiply
    183.67x = 276.47 × 129.94
  4. Step 4: Simplify right side
    183.67x = 35,924.51
  5. Step 5: Solve for x
    x = 35,924.51/183.67
  6. Step 6: Final answer
    x = 195.59

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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.