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Finding the Fourth Proportional to 277.27, 381.83 and 276.43

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Solution

The fourth proportional to 277.27, 381.83 and 276.43 is: 380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.27 : 381.83 = 276.43 : x
  2. Step 2: Convert to fraction form
    277.27/381.83 = 276.43/x
  3. Step 3: Cross multiply
    277.27x = 381.83 × 276.43
  4. Step 4: Simplify right side
    277.27x = 105,549.00
  5. Step 5: Solve for x
    x = 105,549.00/277.27
  6. Step 6: Final answer
    x = 380.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.