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Finding the Fourth Proportional to 534.27, 736.99 and 313.14

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Solution

The fourth proportional to 534.27, 736.99 and 313.14 is: 431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.27 : 736.99 = 313.14 : x
  2. Step 2: Convert to fraction form
    534.27/736.99 = 313.14/x
  3. Step 3: Cross multiply
    534.27x = 736.99 × 313.14
  4. Step 4: Simplify right side
    534.27x = 230,781.05
  5. Step 5: Solve for x
    x = 230,781.05/534.27
  6. Step 6: Final answer
    x = 431.96

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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.