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Finding the Fourth Proportional to 449.82, 621 and 325.26

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Solution

The fourth proportional to 449.82, 621 and 325.26 is: 449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.82 : 621 = 325.26 : x
  2. Step 2: Convert to fraction form
    449.82/621 = 325.26/x
  3. Step 3: Cross multiply
    449.82x = 621 × 325.26
  4. Step 4: Simplify right side
    449.82x = 201,986.46
  5. Step 5: Solve for x
    x = 201,986.46/449.82
  6. Step 6: Final answer
    x = 449.04

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