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Finding the Fourth Proportional to 544.25, 816.91 and 423.83

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Solution

The fourth proportional to 544.25, 816.91 and 423.83 is: 636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.25 : 816.91 = 423.83 : x
  2. Step 2: Convert to fraction form
    544.25/816.91 = 423.83/x
  3. Step 3: Cross multiply
    544.25x = 816.91 × 423.83
  4. Step 4: Simplify right side
    544.25x = 346,226.88
  5. Step 5: Solve for x
    x = 346,226.88/544.25
  6. Step 6: Final answer
    x = 636.16

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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.