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Finding the Fourth Proportional to 403.58, 605.37 and 249.32

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Solution

The fourth proportional to 403.58, 605.37 and 249.32 is: 373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.58 : 605.37 = 249.32 : x
  2. Step 2: Convert to fraction form
    403.58/605.37 = 249.32/x
  3. Step 3: Cross multiply
    403.58x = 605.37 × 249.32
  4. Step 4: Simplify right side
    403.58x = 150,930.85
  5. Step 5: Solve for x
    x = 150,930.85/403.58
  6. Step 6: Final answer
    x = 373.98

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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.