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Finding the Fourth Proportional to 439.56, 658.08 and 365.76

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Solution

The fourth proportional to 439.56, 658.08 and 365.76 is: 547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.56 : 658.08 = 365.76 : x
  2. Step 2: Convert to fraction form
    439.56/658.08 = 365.76/x
  3. Step 3: Cross multiply
    439.56x = 658.08 × 365.76
  4. Step 4: Simplify right side
    439.56x = 240,699.34
  5. Step 5: Solve for x
    x = 240,699.34/439.56
  6. Step 6: Final answer
    x = 547.59

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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.