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Finding the Fourth Proportional to 231.04, 343.97 and 229.89

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Solution

The fourth proportional to 231.04, 343.97 and 229.89 is: 342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.04 : 343.97 = 229.89 : x
  2. Step 2: Convert to fraction form
    231.04/343.97 = 229.89/x
  3. Step 3: Cross multiply
    231.04x = 343.97 × 229.89
  4. Step 4: Simplify right side
    231.04x = 79,076.16
  5. Step 5: Solve for x
    x = 79,076.16/231.04
  6. Step 6: Final answer
    x = 342.25

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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.