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Finding the Fourth Proportional to 363.21, 544.91 and 322.94

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Solution

The fourth proportional to 363.21, 544.91 and 322.94 is: 484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.21 : 544.91 = 322.94 : x
  2. Step 2: Convert to fraction form
    363.21/544.91 = 322.94/x
  3. Step 3: Cross multiply
    363.21x = 544.91 × 322.94
  4. Step 4: Simplify right side
    363.21x = 175,968.90
  5. Step 5: Solve for x
    x = 175,968.90/363.21
  6. Step 6: Final answer
    x = 484.48

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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.