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Finding the Fourth Proportional to 544.27, 750.56 and 395.86

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Solution

The fourth proportional to 544.27, 750.56 and 395.86 is: 545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.27 : 750.56 = 395.86 : x
  2. Step 2: Convert to fraction form
    544.27/750.56 = 395.86/x
  3. Step 3: Cross multiply
    544.27x = 750.56 × 395.86
  4. Step 4: Simplify right side
    544.27x = 297,116.68
  5. Step 5: Solve for x
    x = 297,116.68/544.27
  6. Step 6: Final answer
    x = 545.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.