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Finding the Fourth Proportional to 236.68, 355.37 and 185.88

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Solution

The fourth proportional to 236.68, 355.37 and 185.88 is: 279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.68 : 355.37 = 185.88 : x
  2. Step 2: Convert to fraction form
    236.68/355.37 = 185.88/x
  3. Step 3: Cross multiply
    236.68x = 355.37 × 185.88
  4. Step 4: Simplify right side
    236.68x = 66,056.18
  5. Step 5: Solve for x
    x = 66,056.18/236.68
  6. Step 6: Final answer
    x = 279.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.