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Finding the Fourth Proportional to 655.96, 983.70 and 223

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Solution

The fourth proportional to 655.96, 983.70 and 223 is: 334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.96 : 983.70 = 223 : x
  2. Step 2: Convert to fraction form
    655.96/983.70 = 223/x
  3. Step 3: Cross multiply
    655.96x = 983.70 × 223
  4. Step 4: Simplify right side
    655.96x = 219,365.10
  5. Step 5: Solve for x
    x = 219,365.10/655.96
  6. Step 6: Final answer
    x = 334.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.