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Finding the Fourth Proportional to 412.45, 568.82 and 324.97

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Solution

The fourth proportional to 412.45, 568.82 and 324.97 is: 448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.45 : 568.82 = 324.97 : x
  2. Step 2: Convert to fraction form
    412.45/568.82 = 324.97/x
  3. Step 3: Cross multiply
    412.45x = 568.82 × 324.97
  4. Step 4: Simplify right side
    412.45x = 184,849.44
  5. Step 5: Solve for x
    x = 184,849.44/412.45
  6. Step 6: Final answer
    x = 448.17

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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.