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Finding the Fourth Proportional to 229.46, 344.16 and 191.18

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Solution

The fourth proportional to 229.46, 344.16 and 191.18 is: 286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.46 : 344.16 = 191.18 : x
  2. Step 2: Convert to fraction form
    229.46/344.16 = 191.18/x
  3. Step 3: Cross multiply
    229.46x = 344.16 × 191.18
  4. Step 4: Simplify right side
    229.46x = 65,796.51
  5. Step 5: Solve for x
    x = 65,796.51/229.46
  6. Step 6: Final answer
    x = 286.75

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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.