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Finding the Fourth Proportional to 183.94, 274.79 and 154.89

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Solution

The fourth proportional to 183.94, 274.79 and 154.89 is: 231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.94 : 274.79 = 154.89 : x
  2. Step 2: Convert to fraction form
    183.94/274.79 = 154.89/x
  3. Step 3: Cross multiply
    183.94x = 274.79 × 154.89
  4. Step 4: Simplify right side
    183.94x = 42,562.61
  5. Step 5: Solve for x
    x = 42,562.61/183.94
  6. Step 6: Final answer
    x = 231.40

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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.