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Finding the Fourth Proportional to 544.16, 814.80 and 327.60

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Solution

The fourth proportional to 544.16, 814.80 and 327.60 is: 490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.16 : 814.80 = 327.60 : x
  2. Step 2: Convert to fraction form
    544.16/814.80 = 327.60/x
  3. Step 3: Cross multiply
    544.16x = 814.80 × 327.60
  4. Step 4: Simplify right side
    544.16x = 266,928.48
  5. Step 5: Solve for x
    x = 266,928.48/544.16
  6. Step 6: Final answer
    x = 490.53

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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.