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Finding the Fourth Proportional to 269.40, 370.62 and 248.88

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Solution

The fourth proportional to 269.40, 370.62 and 248.88 is: 342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.40 : 370.62 = 248.88 : x
  2. Step 2: Convert to fraction form
    269.40/370.62 = 248.88/x
  3. Step 3: Cross multiply
    269.40x = 370.62 × 248.88
  4. Step 4: Simplify right side
    269.40x = 92,239.91
  5. Step 5: Solve for x
    x = 92,239.91/269.40
  6. Step 6: Final answer
    x = 342.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.