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Finding the Fourth Proportional to 236.79, 326.93 and 190.76

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Solution

The fourth proportional to 236.79, 326.93 and 190.76 is: 263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.79 : 326.93 = 190.76 : x
  2. Step 2: Convert to fraction form
    236.79/326.93 = 190.76/x
  3. Step 3: Cross multiply
    236.79x = 326.93 × 190.76
  4. Step 4: Simplify right side
    236.79x = 62,362.58
  5. Step 5: Solve for x
    x = 62,362.58/236.79
  6. Step 6: Final answer
    x = 263.37

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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.