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Finding the Fourth Proportional to 352.71, 486.02 and 274.03

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Solution

The fourth proportional to 352.71, 486.02 and 274.03 is: 377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.71 : 486.02 = 274.03 : x
  2. Step 2: Convert to fraction form
    352.71/486.02 = 274.03/x
  3. Step 3: Cross multiply
    352.71x = 486.02 × 274.03
  4. Step 4: Simplify right side
    352.71x = 133,183.53
  5. Step 5: Solve for x
    x = 133,183.53/352.71
  6. Step 6: Final answer
    x = 377.60

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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.