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Finding the Fourth Proportional to 534.26, 736.76 and 394.81

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Solution

The fourth proportional to 534.26, 736.76 and 394.81 is: 544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.26 : 736.76 = 394.81 : x
  2. Step 2: Convert to fraction form
    534.26/736.76 = 394.81/x
  3. Step 3: Cross multiply
    534.26x = 736.76 × 394.81
  4. Step 4: Simplify right side
    534.26x = 290,879.36
  5. Step 5: Solve for x
    x = 290,879.36/534.26
  6. Step 6: Final answer
    x = 544.45

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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.