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Finding the Fourth Proportional to 412.44, 568.62 and 323.74

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Solution

The fourth proportional to 412.44, 568.62 and 323.74 is: 446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.44 : 568.62 = 323.74 : x
  2. Step 2: Convert to fraction form
    412.44/568.62 = 323.74/x
  3. Step 3: Cross multiply
    412.44x = 568.62 × 323.74
  4. Step 4: Simplify right side
    412.44x = 184,085.04
  5. Step 5: Solve for x
    x = 184,085.04/412.44
  6. Step 6: Final answer
    x = 446.33

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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.