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Finding the Fourth Proportional to 240.09, 331.29 and 180.99

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Solution

The fourth proportional to 240.09, 331.29 and 180.99 is: 249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.09 : 331.29 = 180.99 : x
  2. Step 2: Convert to fraction form
    240.09/331.29 = 180.99/x
  3. Step 3: Cross multiply
    240.09x = 331.29 × 180.99
  4. Step 4: Simplify right side
    240.09x = 59,960.18
  5. Step 5: Solve for x
    x = 59,960.18/240.09
  6. Step 6: Final answer
    x = 249.74

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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.