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Finding the Fourth Proportional to 245.39, 339.06 and 236.63

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Solution

The fourth proportional to 245.39, 339.06 and 236.63 is: 326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.39 : 339.06 = 236.63 : x
  2. Step 2: Convert to fraction form
    245.39/339.06 = 236.63/x
  3. Step 3: Cross multiply
    245.39x = 339.06 × 236.63
  4. Step 4: Simplify right side
    245.39x = 80,230.07
  5. Step 5: Solve for x
    x = 80,230.07/245.39
  6. Step 6: Final answer
    x = 326.96

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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.