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Finding the Fourth Proportional to 352.91, 486.68 and 265.43

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Solution

The fourth proportional to 352.91, 486.68 and 265.43 is: 366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.91 : 486.68 = 265.43 : x
  2. Step 2: Convert to fraction form
    352.91/486.68 = 265.43/x
  3. Step 3: Cross multiply
    352.91x = 486.68 × 265.43
  4. Step 4: Simplify right side
    352.91x = 129,175.71
  5. Step 5: Solve for x
    x = 129,175.71/352.91
  6. Step 6: Final answer
    x = 366.04

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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.