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Finding the Fourth Proportional to 240.45, 330.87 and 233.33

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Solution

The fourth proportional to 240.45, 330.87 and 233.33 is: 321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.45 : 330.87 = 233.33 : x
  2. Step 2: Convert to fraction form
    240.45/330.87 = 233.33/x
  3. Step 3: Cross multiply
    240.45x = 330.87 × 233.33
  4. Step 4: Simplify right side
    240.45x = 77,201.12
  5. Step 5: Solve for x
    x = 77,201.12/240.45
  6. Step 6: Final answer
    x = 321.07

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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.