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Finding the Fourth Proportional to 550.44, 818.58 and 533.15

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Solution

The fourth proportional to 550.44, 818.58 and 533.15 is: 792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.44 : 818.58 = 533.15 : x
  2. Step 2: Convert to fraction form
    550.44/818.58 = 533.15/x
  3. Step 3: Cross multiply
    550.44x = 818.58 × 533.15
  4. Step 4: Simplify right side
    550.44x = 436,421.83
  5. Step 5: Solve for x
    x = 436,421.83/550.44
  6. Step 6: Final answer
    x = 792.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.