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Finding the Fourth Proportional to 453.22, 625.43 and 254.05

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Solution

The fourth proportional to 453.22, 625.43 and 254.05 is: 350.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.22 : 625.43 = 254.05 : x
  2. Step 2: Convert to fraction form
    453.22/625.43 = 254.05/x
  3. Step 3: Cross multiply
    453.22x = 625.43 × 254.05
  4. Step 4: Simplify right side
    453.22x = 158,887.66
  5. Step 5: Solve for x
    x = 158,887.66/453.22
  6. Step 6: Final answer
    x = 350.58

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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.