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Finding the Fourth Proportional to 544.80, 816.68 and 325.48

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Solution

The fourth proportional to 544.80, 816.68 and 325.48 is: 487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.80 : 816.68 = 325.48 : x
  2. Step 2: Convert to fraction form
    544.80/816.68 = 325.48/x
  3. Step 3: Cross multiply
    544.80x = 816.68 × 325.48
  4. Step 4: Simplify right side
    544.80x = 265,813.01
  5. Step 5: Solve for x
    x = 265,813.01/544.80
  6. Step 6: Final answer
    x = 487.91

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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.