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Finding the Fourth Proportional to 550.96, 826.34 and 204.21

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Solution

The fourth proportional to 550.96, 826.34 and 204.21 is: 306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.96 : 826.34 = 204.21 : x
  2. Step 2: Convert to fraction form
    550.96/826.34 = 204.21/x
  3. Step 3: Cross multiply
    550.96x = 826.34 × 204.21
  4. Step 4: Simplify right side
    550.96x = 168,746.04
  5. Step 5: Solve for x
    x = 168,746.04/550.96
  6. Step 6: Final answer
    x = 306.28

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Double scale
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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.