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Finding the Fourth Proportional to 496.52, 685.09 and 339.27

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Solution

The fourth proportional to 496.52, 685.09 and 339.27 is: 468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.52 : 685.09 = 339.27 : x
  2. Step 2: Convert to fraction form
    496.52/685.09 = 339.27/x
  3. Step 3: Cross multiply
    496.52x = 685.09 × 339.27
  4. Step 4: Simplify right side
    496.52x = 232,430.48
  5. Step 5: Solve for x
    x = 232,430.48/496.52
  6. Step 6: Final answer
    x = 468.12

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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.