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Finding the Fourth Proportional to 224.89, 335.90 and 190.30

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Solution

The fourth proportional to 224.89, 335.90 and 190.30 is: 284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.89 : 335.90 = 190.30 : x
  2. Step 2: Convert to fraction form
    224.89/335.90 = 190.30/x
  3. Step 3: Cross multiply
    224.89x = 335.90 × 190.30
  4. Step 4: Simplify right side
    224.89x = 63,920.97
  5. Step 5: Solve for x
    x = 63,920.97/224.89
  6. Step 6: Final answer
    x = 284.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.