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Finding the Fourth Proportional to 245.92, 340.96 and 236.80

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Solution

The fourth proportional to 245.92, 340.96 and 236.80 is: 328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.92 : 340.96 = 236.80 : x
  2. Step 2: Convert to fraction form
    245.92/340.96 = 236.80/x
  3. Step 3: Cross multiply
    245.92x = 340.96 × 236.80
  4. Step 4: Simplify right side
    245.92x = 80,739.33
  5. Step 5: Solve for x
    x = 80,739.33/245.92
  6. Step 6: Final answer
    x = 328.32

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.