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Finding the Fourth Proportional to 250.32, 376.12 and 217.84

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Solution

The fourth proportional to 250.32, 376.12 and 217.84 is: 327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.32 : 376.12 = 217.84 : x
  2. Step 2: Convert to fraction form
    250.32/376.12 = 217.84/x
  3. Step 3: Cross multiply
    250.32x = 376.12 × 217.84
  4. Step 4: Simplify right side
    250.32x = 81,933.98
  5. Step 5: Solve for x
    x = 81,933.98/250.32
  6. Step 6: Final answer
    x = 327.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.