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Finding the Fourth Proportional to 544.54, 816.82 and 159.80

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Solution

The fourth proportional to 544.54, 816.82 and 159.80 is: 239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.54 : 816.82 = 159.80 : x
  2. Step 2: Convert to fraction form
    544.54/816.82 = 159.80/x
  3. Step 3: Cross multiply
    544.54x = 816.82 × 159.80
  4. Step 4: Simplify right side
    544.54x = 130,527.84
  5. Step 5: Solve for x
    x = 130,527.84/544.54
  6. Step 6: Final answer
    x = 239.70

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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.