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Finding the Fourth Proportional to 245.22, 366.39 and 236.72

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Solution

The fourth proportional to 245.22, 366.39 and 236.72 is: 353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.22 : 366.39 = 236.72 : x
  2. Step 2: Convert to fraction form
    245.22/366.39 = 236.72/x
  3. Step 3: Cross multiply
    245.22x = 366.39 × 236.72
  4. Step 4: Simplify right side
    245.22x = 86,730.60
  5. Step 5: Solve for x
    x = 86,730.60/245.22
  6. Step 6: Final answer
    x = 353.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.