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Finding the Fourth Proportional to 235.66, 325.23 and 136.11

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Solution

The fourth proportional to 235.66, 325.23 and 136.11 is: 187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.66 : 325.23 = 136.11 : x
  2. Step 2: Convert to fraction form
    235.66/325.23 = 136.11/x
  3. Step 3: Cross multiply
    235.66x = 325.23 × 136.11
  4. Step 4: Simplify right side
    235.66x = 44,266.37
  5. Step 5: Solve for x
    x = 44,266.37/235.66
  6. Step 6: Final answer
    x = 187.84

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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.