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Finding the Fourth Proportional to 245.08, 367.02 and 142.14

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Solution

The fourth proportional to 245.08, 367.02 and 142.14 is: 212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.08 : 367.02 = 142.14 : x
  2. Step 2: Convert to fraction form
    245.08/367.02 = 142.14/x
  3. Step 3: Cross multiply
    245.08x = 367.02 × 142.14
  4. Step 4: Simplify right side
    245.08x = 52,168.22
  5. Step 5: Solve for x
    x = 52,168.22/245.08
  6. Step 6: Final answer
    x = 212.86

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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.