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Finding the Fourth Proportional to 240.84, 330.39 and 234.45

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Solution

The fourth proportional to 240.84, 330.39 and 234.45 is: 321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.84 : 330.39 = 234.45 : x
  2. Step 2: Convert to fraction form
    240.84/330.39 = 234.45/x
  3. Step 3: Cross multiply
    240.84x = 330.39 × 234.45
  4. Step 4: Simplify right side
    240.84x = 77,459.94
  5. Step 5: Solve for x
    x = 77,459.94/240.84
  6. Step 6: Final answer
    x = 321.62

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.