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Finding the Fourth Proportional to 496.14, 745.37 and 290.85

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Solution

The fourth proportional to 496.14, 745.37 and 290.85 is: 436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.14 : 745.37 = 290.85 : x
  2. Step 2: Convert to fraction form
    496.14/745.37 = 290.85/x
  3. Step 3: Cross multiply
    496.14x = 745.37 × 290.85
  4. Step 4: Simplify right side
    496.14x = 216,790.86
  5. Step 5: Solve for x
    x = 216,790.86/496.14
  6. Step 6: Final answer
    x = 436.96

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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.