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Finding the Fourth Proportional to 539.33, 743.99 and 477.16

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Solution

The fourth proportional to 539.33, 743.99 and 477.16 is: 658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.33 : 743.99 = 477.16 : x
  2. Step 2: Convert to fraction form
    539.33/743.99 = 477.16/x
  3. Step 3: Cross multiply
    539.33x = 743.99 × 477.16
  4. Step 4: Simplify right side
    539.33x = 354,998.02
  5. Step 5: Solve for x
    x = 354,998.02/539.33
  6. Step 6: Final answer
    x = 658.23

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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.