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Finding the Fourth Proportional to 403.96, 605.58 and 301.12

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Solution

The fourth proportional to 403.96, 605.58 and 301.12 is: 451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.96 : 605.58 = 301.12 : x
  2. Step 2: Convert to fraction form
    403.96/605.58 = 301.12/x
  3. Step 3: Cross multiply
    403.96x = 605.58 × 301.12
  4. Step 4: Simplify right side
    403.96x = 182,352.25
  5. Step 5: Solve for x
    x = 182,352.25/403.96
  6. Step 6: Final answer
    x = 451.41

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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.