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Finding the Fourth Proportional to 224.72, 336 and 190.88

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Solution

The fourth proportional to 224.72, 336 and 190.88 is: 285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.72 : 336 = 190.88 : x
  2. Step 2: Convert to fraction form
    224.72/336 = 190.88/x
  3. Step 3: Cross multiply
    224.72x = 336 × 190.88
  4. Step 4: Simplify right side
    224.72x = 64,135.68
  5. Step 5: Solve for x
    x = 64,135.68/224.72
  6. Step 6: Final answer
    x = 285.40

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