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Finding the Fourth Proportional to 544.86, 817.10 and 270.78

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Solution

The fourth proportional to 544.86, 817.10 and 270.78 is: 406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.86 : 817.10 = 270.78 : x
  2. Step 2: Convert to fraction form
    544.86/817.10 = 270.78/x
  3. Step 3: Cross multiply
    544.86x = 817.10 × 270.78
  4. Step 4: Simplify right side
    544.86x = 221,254.34
  5. Step 5: Solve for x
    x = 221,254.34/544.86
  6. Step 6: Final answer
    x = 406.08

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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.