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Finding the Fourth Proportional to 245.14, 365.17 and 231.46

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Solution

The fourth proportional to 245.14, 365.17 and 231.46 is: 344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.14 : 365.17 = 231.46 : x
  2. Step 2: Convert to fraction form
    245.14/365.17 = 231.46/x
  3. Step 3: Cross multiply
    245.14x = 365.17 × 231.46
  4. Step 4: Simplify right side
    245.14x = 84,521.09
  5. Step 5: Solve for x
    x = 84,521.09/245.14
  6. Step 6: Final answer
    x = 344.79

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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.