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Finding the Fourth Proportional to 240.49, 358.99 and 223.61

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Solution

The fourth proportional to 240.49, 358.99 and 223.61 is: 333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.49 : 358.99 = 223.61 : x
  2. Step 2: Convert to fraction form
    240.49/358.99 = 223.61/x
  3. Step 3: Cross multiply
    240.49x = 358.99 × 223.61
  4. Step 4: Simplify right side
    240.49x = 80,273.75
  5. Step 5: Solve for x
    x = 80,273.75/240.49
  6. Step 6: Final answer
    x = 333.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.