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Finding the Fourth Proportional to 550.17, 824.17 and 458.58

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Solution

The fourth proportional to 550.17, 824.17 and 458.58 is: 686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.17 : 824.17 = 458.58 : x
  2. Step 2: Convert to fraction form
    550.17/824.17 = 458.58/x
  3. Step 3: Cross multiply
    550.17x = 824.17 × 458.58
  4. Step 4: Simplify right side
    550.17x = 377,947.88
  5. Step 5: Solve for x
    x = 377,947.88/550.17
  6. Step 6: Final answer
    x = 686.97

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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.