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Finding the Fourth Proportional to 252.30, 345.62 and 248.86

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Solution

The fourth proportional to 252.30, 345.62 and 248.86 is: 340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.30 : 345.62 = 248.86 : x
  2. Step 2: Convert to fraction form
    252.30/345.62 = 248.86/x
  3. Step 3: Cross multiply
    252.30x = 345.62 × 248.86
  4. Step 4: Simplify right side
    252.30x = 86,010.99
  5. Step 5: Solve for x
    x = 86,010.99/252.30
  6. Step 6: Final answer
    x = 340.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.