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Finding the Fourth Proportional to 276.86, 382.09 and 183.45

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Solution

The fourth proportional to 276.86, 382.09 and 183.45 is: 253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.86 : 382.09 = 183.45 : x
  2. Step 2: Convert to fraction form
    276.86/382.09 = 183.45/x
  3. Step 3: Cross multiply
    276.86x = 382.09 × 183.45
  4. Step 4: Simplify right side
    276.86x = 70,091.58
  5. Step 5: Solve for x
    x = 70,091.58/276.86
  6. Step 6: Final answer
    x = 253.17

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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.