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Finding the Fourth Proportional to 412.46, 568.28 and 272.33

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Solution

The fourth proportional to 412.46, 568.28 and 272.33 is: 375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.46 : 568.28 = 272.33 : x
  2. Step 2: Convert to fraction form
    412.46/568.28 = 272.33/x
  3. Step 3: Cross multiply
    412.46x = 568.28 × 272.33
  4. Step 4: Simplify right side
    412.46x = 154,761.79
  5. Step 5: Solve for x
    x = 154,761.79/412.46
  6. Step 6: Final answer
    x = 375.21

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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.