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Finding the Fourth Proportional to 230.59, 344.48 and 191.85

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Solution

The fourth proportional to 230.59, 344.48 and 191.85 is: 286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.59 : 344.48 = 191.85 : x
  2. Step 2: Convert to fraction form
    230.59/344.48 = 191.85/x
  3. Step 3: Cross multiply
    230.59x = 344.48 × 191.85
  4. Step 4: Simplify right side
    230.59x = 66,088.49
  5. Step 5: Solve for x
    x = 66,088.49/230.59
  6. Step 6: Final answer
    x = 286.61

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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.