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Finding the Fourth Proportional to 301.08, 414.29 and 231.11

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Solution

The fourth proportional to 301.08, 414.29 and 231.11 is: 318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.08 : 414.29 = 231.11 : x
  2. Step 2: Convert to fraction form
    301.08/414.29 = 231.11/x
  3. Step 3: Cross multiply
    301.08x = 414.29 × 231.11
  4. Step 4: Simplify right side
    301.08x = 95,746.44
  5. Step 5: Solve for x
    x = 95,746.44/301.08
  6. Step 6: Final answer
    x = 318.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.