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Finding the Fourth Proportional to 655.48, 983.24 and 222.64

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Solution

The fourth proportional to 655.48, 983.24 and 222.64 is: 333.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.48 : 983.24 = 222.64 : x
  2. Step 2: Convert to fraction form
    655.48/983.24 = 222.64/x
  3. Step 3: Cross multiply
    655.48x = 983.24 × 222.64
  4. Step 4: Simplify right side
    655.48x = 218,902.52
  5. Step 5: Solve for x
    x = 218,902.52/655.48
  6. Step 6: Final answer
    x = 333.96

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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.