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Finding the Fourth Proportional to 449.18, 673.25 and 275.57

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Solution

The fourth proportional to 449.18, 673.25 and 275.57 is: 413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.18 : 673.25 = 275.57 : x
  2. Step 2: Convert to fraction form
    449.18/673.25 = 275.57/x
  3. Step 3: Cross multiply
    449.18x = 673.25 × 275.57
  4. Step 4: Simplify right side
    449.18x = 185,525.28
  5. Step 5: Solve for x
    x = 185,525.28/449.18
  6. Step 6: Final answer
    x = 413.03

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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.