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Finding the Fourth Proportional to 450.26, 620.73 and 371.30

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Solution

The fourth proportional to 450.26, 620.73 and 371.30 is: 511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.26 : 620.73 = 371.30 : x
  2. Step 2: Convert to fraction form
    450.26/620.73 = 371.30/x
  3. Step 3: Cross multiply
    450.26x = 620.73 × 371.30
  4. Step 4: Simplify right side
    450.26x = 230,477.05
  5. Step 5: Solve for x
    x = 230,477.05/450.26
  6. Step 6: Final answer
    x = 511.88

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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.