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Finding the Fourth Proportional to 245.03, 338.11 and 140.14

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Solution

The fourth proportional to 245.03, 338.11 and 140.14 is: 193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.03 : 338.11 = 140.14 : x
  2. Step 2: Convert to fraction form
    245.03/338.11 = 140.14/x
  3. Step 3: Cross multiply
    245.03x = 338.11 × 140.14
  4. Step 4: Simplify right side
    245.03x = 47,382.81
  5. Step 5: Solve for x
    x = 47,382.81/245.03
  6. Step 6: Final answer
    x = 193.38

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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.