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Finding the Fourth Proportional to 283.68, 427.32 and 268.56

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Solution

The fourth proportional to 283.68, 427.32 and 268.56 is: 404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.68 : 427.32 = 268.56 : x
  2. Step 2: Convert to fraction form
    283.68/427.32 = 268.56/x
  3. Step 3: Cross multiply
    283.68x = 427.32 × 268.56
  4. Step 4: Simplify right side
    283.68x = 114,761.06
  5. Step 5: Solve for x
    x = 114,761.06/283.68
  6. Step 6: Final answer
    x = 404.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.