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Finding the Fourth Proportional to 439.56, 658.58 and 352.44

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Solution

The fourth proportional to 439.56, 658.58 and 352.44 is: 528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.56 : 658.58 = 352.44 : x
  2. Step 2: Convert to fraction form
    439.56/658.58 = 352.44/x
  3. Step 3: Cross multiply
    439.56x = 658.58 × 352.44
  4. Step 4: Simplify right side
    439.56x = 232,108.17
  5. Step 5: Solve for x
    x = 232,108.17/439.56
  6. Step 6: Final answer
    x = 528.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.