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Finding the Fourth Proportional to 245.22, 367.20 and 129.24

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Solution

The fourth proportional to 245.22, 367.20 and 129.24 is: 193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.22 : 367.20 = 129.24 : x
  2. Step 2: Convert to fraction form
    245.22/367.20 = 129.24/x
  3. Step 3: Cross multiply
    245.22x = 367.20 × 129.24
  4. Step 4: Simplify right side
    245.22x = 47,456.93
  5. Step 5: Solve for x
    x = 47,456.93/245.22
  6. Step 6: Final answer
    x = 193.53

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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.