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Finding the Fourth Proportional to 240.45, 361.49 and 239.24

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Solution

The fourth proportional to 240.45, 361.49 and 239.24 is: 359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.45 : 361.49 = 239.24 : x
  2. Step 2: Convert to fraction form
    240.45/361.49 = 239.24/x
  3. Step 3: Cross multiply
    240.45x = 361.49 × 239.24
  4. Step 4: Simplify right side
    240.45x = 86,479.86
  5. Step 5: Solve for x
    x = 86,479.86/240.45
  6. Step 6: Final answer
    x = 359.66

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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.