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Finding the Fourth Proportional to 276.65, 379.58 and 274.07

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Solution

The fourth proportional to 276.65, 379.58 and 274.07 is: 376.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.65 : 379.58 = 274.07 : x
  2. Step 2: Convert to fraction form
    276.65/379.58 = 274.07/x
  3. Step 3: Cross multiply
    276.65x = 379.58 × 274.07
  4. Step 4: Simplify right side
    276.65x = 104,031.49
  5. Step 5: Solve for x
    x = 104,031.49/276.65
  6. Step 6: Final answer
    x = 376.04

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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.