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Finding the Fourth Proportional to 280.33, 419.58 and 241.45

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Solution

The fourth proportional to 280.33, 419.58 and 241.45 is: 361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280.33 : 419.58 = 241.45 : x
  2. Step 2: Convert to fraction form
    280.33/419.58 = 241.45/x
  3. Step 3: Cross multiply
    280.33x = 419.58 × 241.45
  4. Step 4: Simplify right side
    280.33x = 101,306.54
  5. Step 5: Solve for x
    x = 101,306.54/280.33
  6. Step 6: Final answer
    x = 361.39

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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.