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Finding the Fourth Proportional to 248.80, 372.64 and 184.80

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Solution

The fourth proportional to 248.80, 372.64 and 184.80 is: 276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.80 : 372.64 = 184.80 : x
  2. Step 2: Convert to fraction form
    248.80/372.64 = 184.80/x
  3. Step 3: Cross multiply
    248.80x = 372.64 × 184.80
  4. Step 4: Simplify right side
    248.80x = 68,863.87
  5. Step 5: Solve for x
    x = 68,863.87/248.80
  6. Step 6: Final answer
    x = 276.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.