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Finding the Fourth Proportional to 534.54, 737.31 and 449.16

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Solution

The fourth proportional to 534.54, 737.31 and 449.16 is: 619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.54 : 737.31 = 449.16 : x
  2. Step 2: Convert to fraction form
    534.54/737.31 = 449.16/x
  3. Step 3: Cross multiply
    534.54x = 737.31 × 449.16
  4. Step 4: Simplify right side
    534.54x = 331,170.16
  5. Step 5: Solve for x
    x = 331,170.16/534.54
  6. Step 6: Final answer
    x = 619.54

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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.