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Finding the Fourth Proportional to 453.85, 680.81 and 363.64

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Solution

The fourth proportional to 453.85, 680.81 and 363.64 is: 545.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.85 : 680.81 = 363.64 : x
  2. Step 2: Convert to fraction form
    453.85/680.81 = 363.64/x
  3. Step 3: Cross multiply
    453.85x = 680.81 × 363.64
  4. Step 4: Simplify right side
    453.85x = 247,567.50
  5. Step 5: Solve for x
    x = 247,567.50/453.85
  6. Step 6: Final answer
    x = 545.48

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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.