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Finding the Fourth Proportional to 291.70, 439.56 and 241.47

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Solution

The fourth proportional to 291.70, 439.56 and 241.47 is: 363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.70 : 439.56 = 241.47 : x
  2. Step 2: Convert to fraction form
    291.70/439.56 = 241.47/x
  3. Step 3: Cross multiply
    291.70x = 439.56 × 241.47
  4. Step 4: Simplify right side
    291.70x = 106,142.20
  5. Step 5: Solve for x
    x = 106,142.20/291.70
  6. Step 6: Final answer
    x = 363.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.