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Finding the Fourth Proportional to 539.26, 809.20 and 366.02

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Solution

The fourth proportional to 539.26, 809.20 and 366.02 is: 549.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.26 : 809.20 = 366.02 : x
  2. Step 2: Convert to fraction form
    539.26/809.20 = 366.02/x
  3. Step 3: Cross multiply
    539.26x = 809.20 × 366.02
  4. Step 4: Simplify right side
    539.26x = 296,183.38
  5. Step 5: Solve for x
    x = 296,183.38/539.26
  6. Step 6: Final answer
    x = 549.24

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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.