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Finding the Fourth Proportional to 455.49, 682.16 and 363.42

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Solution

The fourth proportional to 455.49, 682.16 and 363.42 is: 544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.49 : 682.16 = 363.42 : x
  2. Step 2: Convert to fraction form
    455.49/682.16 = 363.42/x
  3. Step 3: Cross multiply
    455.49x = 682.16 × 363.42
  4. Step 4: Simplify right side
    455.49x = 247,908.77
  5. Step 5: Solve for x
    x = 247,908.77/455.49
  6. Step 6: Final answer
    x = 544.27

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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.