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Finding the Fourth Proportional to 277.32, 382.44 and 178.92

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Solution

The fourth proportional to 277.32, 382.44 and 178.92 is: 246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.32 : 382.44 = 178.92 : x
  2. Step 2: Convert to fraction form
    277.32/382.44 = 178.92/x
  3. Step 3: Cross multiply
    277.32x = 382.44 × 178.92
  4. Step 4: Simplify right side
    277.32x = 68,426.16
  5. Step 5: Solve for x
    x = 68,426.16/277.32
  6. Step 6: Final answer
    x = 246.74

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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.