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Finding the Fourth Proportional to 224.55, 335.28 and 187.65

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Solution

The fourth proportional to 224.55, 335.28 and 187.65 is: 280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.55 : 335.28 = 187.65 : x
  2. Step 2: Convert to fraction form
    224.55/335.28 = 187.65/x
  3. Step 3: Cross multiply
    224.55x = 335.28 × 187.65
  4. Step 4: Simplify right side
    224.55x = 62,915.29
  5. Step 5: Solve for x
    x = 62,915.29/224.55
  6. Step 6: Final answer
    x = 280.18

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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.