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Finding the Fourth Proportional to 276.02, 379.32 and 248.69

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Solution

The fourth proportional to 276.02, 379.32 and 248.69 is: 341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.02 : 379.32 = 248.69 : x
  2. Step 2: Convert to fraction form
    276.02/379.32 = 248.69/x
  3. Step 3: Cross multiply
    276.02x = 379.32 × 248.69
  4. Step 4: Simplify right side
    276.02x = 94,331.19
  5. Step 5: Solve for x
    x = 94,331.19/276.02
  6. Step 6: Final answer
    x = 341.76

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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.