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Finding the Fourth Proportional to 274.85, 379.29 and 150.52

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Solution

The fourth proportional to 274.85, 379.29 and 150.52 is: 207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.85 : 379.29 = 150.52 : x
  2. Step 2: Convert to fraction form
    274.85/379.29 = 150.52/x
  3. Step 3: Cross multiply
    274.85x = 379.29 × 150.52
  4. Step 4: Simplify right side
    274.85x = 57,090.11
  5. Step 5: Solve for x
    x = 57,090.11/274.85
  6. Step 6: Final answer
    x = 207.71

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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.