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Finding the Fourth Proportional to 454.68, 682.30 and 249.26

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Solution

The fourth proportional to 454.68, 682.30 and 249.26 is: 374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.68 : 682.30 = 249.26 : x
  2. Step 2: Convert to fraction form
    454.68/682.30 = 249.26/x
  3. Step 3: Cross multiply
    454.68x = 682.30 × 249.26
  4. Step 4: Simplify right side
    454.68x = 170,070.10
  5. Step 5: Solve for x
    x = 170,070.10/454.68
  6. Step 6: Final answer
    x = 374.04

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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.