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Finding the Fourth Proportional to 455.43, 682.94 and 224.17

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Solution

The fourth proportional to 455.43, 682.94 and 224.17 is: 336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.43 : 682.94 = 224.17 : x
  2. Step 2: Convert to fraction form
    455.43/682.94 = 224.17/x
  3. Step 3: Cross multiply
    455.43x = 682.94 × 224.17
  4. Step 4: Simplify right side
    455.43x = 153,094.39
  5. Step 5: Solve for x
    x = 153,094.39/455.43
  6. Step 6: Final answer
    x = 336.16

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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.