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Finding the Fourth Proportional to 539.26, 808.55 and 356.33

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Solution

The fourth proportional to 539.26, 808.55 and 356.33 is: 534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.26 : 808.55 = 356.33 : x
  2. Step 2: Convert to fraction form
    539.26/808.55 = 356.33/x
  3. Step 3: Cross multiply
    539.26x = 808.55 × 356.33
  4. Step 4: Simplify right side
    539.26x = 288,112.20
  5. Step 5: Solve for x
    x = 288,112.20/539.26
  6. Step 6: Final answer
    x = 534.28

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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.