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Finding the Fourth Proportional to 240.05, 360.45 and 193.94

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Solution

The fourth proportional to 240.05, 360.45 and 193.94 is: 291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.05 : 360.45 = 193.94 : x
  2. Step 2: Convert to fraction form
    240.05/360.45 = 193.94/x
  3. Step 3: Cross multiply
    240.05x = 360.45 × 193.94
  4. Step 4: Simplify right side
    240.05x = 69,903.87
  5. Step 5: Solve for x
    x = 69,903.87/240.05
  6. Step 6: Final answer
    x = 291.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.