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Finding the Fourth Proportional to 541.55, 813.41 and 444.22

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Solution

The fourth proportional to 541.55, 813.41 and 444.22 is: 667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.55 : 813.41 = 444.22 : x
  2. Step 2: Convert to fraction form
    541.55/813.41 = 444.22/x
  3. Step 3: Cross multiply
    541.55x = 813.41 × 444.22
  4. Step 4: Simplify right side
    541.55x = 361,326.70
  5. Step 5: Solve for x
    x = 361,326.70/541.55
  6. Step 6: Final answer
    x = 667.21

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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.