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Finding the Fourth Proportional to 496.88, 745.00 and 172.27

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Solution

The fourth proportional to 496.88, 745.00 and 172.27 is: 258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.88 : 745.00 = 172.27 : x
  2. Step 2: Convert to fraction form
    496.88/745.00 = 172.27/x
  3. Step 3: Cross multiply
    496.88x = 745.00 × 172.27
  4. Step 4: Simplify right side
    496.88x = 128,336.56
  5. Step 5: Solve for x
    x = 128,336.56/496.88
  6. Step 6: Final answer
    x = 258.29

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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.