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Finding the Fourth Proportional to 274.56, 379.37 and 264.71

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Solution

The fourth proportional to 274.56, 379.37 and 264.71 is: 365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.56 : 379.37 = 264.71 : x
  2. Step 2: Convert to fraction form
    274.56/379.37 = 264.71/x
  3. Step 3: Cross multiply
    274.56x = 379.37 × 264.71
  4. Step 4: Simplify right side
    274.56x = 100,421.02
  5. Step 5: Solve for x
    x = 100,421.02/274.56
  6. Step 6: Final answer
    x = 365.75

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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.