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Finding the Fourth Proportional to 236.34, 351.86 and 235.20

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Solution

The fourth proportional to 236.34, 351.86 and 235.20 is: 350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.34 : 351.86 = 235.20 : x
  2. Step 2: Convert to fraction form
    236.34/351.86 = 235.20/x
  3. Step 3: Cross multiply
    236.34x = 351.86 × 235.20
  4. Step 4: Simplify right side
    236.34x = 82,757.47
  5. Step 5: Solve for x
    x = 82,757.47/236.34
  6. Step 6: Final answer
    x = 350.16

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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.