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Finding the Fourth Proportional to 240.05, 330.96 and 190.84

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Solution

The fourth proportional to 240.05, 330.96 and 190.84 is: 263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.05 : 330.96 = 190.84 : x
  2. Step 2: Convert to fraction form
    240.05/330.96 = 190.84/x
  3. Step 3: Cross multiply
    240.05x = 330.96 × 190.84
  4. Step 4: Simplify right side
    240.05x = 63,160.38
  5. Step 5: Solve for x
    x = 63,160.38/240.05
  6. Step 6: Final answer
    x = 263.12

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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.