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Finding the Fourth Proportional to 311.24, 429.03 and 241.18

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Solution

The fourth proportional to 311.24, 429.03 and 241.18 is: 332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.24 : 429.03 = 241.18 : x
  2. Step 2: Convert to fraction form
    311.24/429.03 = 241.18/x
  3. Step 3: Cross multiply
    311.24x = 429.03 × 241.18
  4. Step 4: Simplify right side
    311.24x = 103,472.38
  5. Step 5: Solve for x
    x = 103,472.38/311.24
  6. Step 6: Final answer
    x = 332.45

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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.