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Finding the Fourth Proportional to 245.91, 340.22 and 236.91

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Solution

The fourth proportional to 245.91, 340.22 and 236.91 is: 327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.91 : 340.22 = 236.91 : x
  2. Step 2: Convert to fraction form
    245.91/340.22 = 236.91/x
  3. Step 3: Cross multiply
    245.91x = 340.22 × 236.91
  4. Step 4: Simplify right side
    245.91x = 80,600.34
  5. Step 5: Solve for x
    x = 80,600.34/245.91
  6. Step 6: Final answer
    x = 327.76

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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.