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Finding the Fourth Proportional to 544.26, 815.43 and 300.18

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Solution

The fourth proportional to 544.26, 815.43 and 300.18 is: 449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.26 : 815.43 = 300.18 : x
  2. Step 2: Convert to fraction form
    544.26/815.43 = 300.18/x
  3. Step 3: Cross multiply
    544.26x = 815.43 × 300.18
  4. Step 4: Simplify right side
    544.26x = 244,775.78
  5. Step 5: Solve for x
    x = 244,775.78/544.26
  6. Step 6: Final answer
    x = 449.74

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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.