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Finding the Fourth Proportional to 454.52, 682.05 and 223.40

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Solution

The fourth proportional to 454.52, 682.05 and 223.40 is: 335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.52 : 682.05 = 223.40 : x
  2. Step 2: Convert to fraction form
    454.52/682.05 = 223.40/x
  3. Step 3: Cross multiply
    454.52x = 682.05 × 223.40
  4. Step 4: Simplify right side
    454.52x = 152,369.97
  5. Step 5: Solve for x
    x = 152,369.97/454.52
  6. Step 6: Final answer
    x = 335.23

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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.