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Finding the Fourth Proportional to 458.28, 635.22 and 451.44

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Solution

The fourth proportional to 458.28, 635.22 and 451.44 is: 625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.28 : 635.22 = 451.44 : x
  2. Step 2: Convert to fraction form
    458.28/635.22 = 451.44/x
  3. Step 3: Cross multiply
    458.28x = 635.22 × 451.44
  4. Step 4: Simplify right side
    458.28x = 286,763.72
  5. Step 5: Solve for x
    x = 286,763.72/458.28
  6. Step 6: Final answer
    x = 625.74

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.