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Finding the Fourth Proportional to 588.20, 811.26 and 352.19

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Solution

The fourth proportional to 588.20, 811.26 and 352.19 is: 485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.20 : 811.26 = 352.19 : x
  2. Step 2: Convert to fraction form
    588.20/811.26 = 352.19/x
  3. Step 3: Cross multiply
    588.20x = 811.26 × 352.19
  4. Step 4: Simplify right side
    588.20x = 285,713.60
  5. Step 5: Solve for x
    x = 285,713.60/588.20
  6. Step 6: Final answer
    x = 485.75

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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.