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Finding the Fourth Proportional to 236.56, 354.59 and 154.19

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Solution

The fourth proportional to 236.56, 354.59 and 154.19 is: 231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.56 : 354.59 = 154.19 : x
  2. Step 2: Convert to fraction form
    236.56/354.59 = 154.19/x
  3. Step 3: Cross multiply
    236.56x = 354.59 × 154.19
  4. Step 4: Simplify right side
    236.56x = 54,673.46
  5. Step 5: Solve for x
    x = 54,673.46/236.56
  6. Step 6: Final answer
    x = 231.12

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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.