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Finding the Fourth Proportional to 544.03, 815.32 and 254.86

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Solution

The fourth proportional to 544.03, 815.32 and 254.86 is: 381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.03 : 815.32 = 254.86 : x
  2. Step 2: Convert to fraction form
    544.03/815.32 = 254.86/x
  3. Step 3: Cross multiply
    544.03x = 815.32 × 254.86
  4. Step 4: Simplify right side
    544.03x = 207,790.74
  5. Step 5: Solve for x
    x = 207,790.74/544.03
  6. Step 6: Final answer
    x = 381.95

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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.