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Finding the Fourth Proportional to 441.98, 610.23 and 395.21

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Solution

The fourth proportional to 441.98, 610.23 and 395.21 is: 545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.98 : 610.23 = 395.21 : x
  2. Step 2: Convert to fraction form
    441.98/610.23 = 395.21/x
  3. Step 3: Cross multiply
    441.98x = 610.23 × 395.21
  4. Step 4: Simplify right side
    441.98x = 241,165.95
  5. Step 5: Solve for x
    x = 241,165.95/441.98
  6. Step 6: Final answer
    x = 545.66

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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.