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Finding the Fourth Proportional to 248.48, 370.53 and 231.17

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Solution

The fourth proportional to 248.48, 370.53 and 231.17 is: 344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.48 : 370.53 = 231.17 : x
  2. Step 2: Convert to fraction form
    248.48/370.53 = 231.17/x
  3. Step 3: Cross multiply
    248.48x = 370.53 × 231.17
  4. Step 4: Simplify right side
    248.48x = 85,653.57
  5. Step 5: Solve for x
    x = 85,653.57/248.48
  6. Step 6: Final answer
    x = 344.71

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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.