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Finding the Fourth Proportional to 227.64, 340.08 and 191.16

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Solution

The fourth proportional to 227.64, 340.08 and 191.16 is: 285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.64 : 340.08 = 191.16 : x
  2. Step 2: Convert to fraction form
    227.64/340.08 = 191.16/x
  3. Step 3: Cross multiply
    227.64x = 340.08 × 191.16
  4. Step 4: Simplify right side
    227.64x = 65,009.69
  5. Step 5: Solve for x
    x = 65,009.69/227.64
  6. Step 6: Final answer
    x = 285.58

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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.