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Finding the Fourth Proportional to 224.07, 335.53 and 191.78

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Solution

The fourth proportional to 224.07, 335.53 and 191.78 is: 287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.07 : 335.53 = 191.78 : x
  2. Step 2: Convert to fraction form
    224.07/335.53 = 191.78/x
  3. Step 3: Cross multiply
    224.07x = 335.53 × 191.78
  4. Step 4: Simplify right side
    224.07x = 64,345.74
  5. Step 5: Solve for x
    x = 64,345.74/224.07
  6. Step 6: Final answer
    x = 287.16

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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.