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Finding the Fourth Proportional to 236.79, 323.95 and 235.76

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Solution

The fourth proportional to 236.79, 323.95 and 235.76 is: 322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.79 : 323.95 = 235.76 : x
  2. Step 2: Convert to fraction form
    236.79/323.95 = 235.76/x
  3. Step 3: Cross multiply
    236.79x = 323.95 × 235.76
  4. Step 4: Simplify right side
    236.79x = 76,374.23
  5. Step 5: Solve for x
    x = 76,374.23/236.79
  6. Step 6: Final answer
    x = 322.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.