Finding the Fourth Proportional to 193.26, 289.62 and 154.58
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Solution
The fourth proportional to 193.26, 289.62 and 154.58 is: 231.65
Step by Step Solution
- Step 1: Write the proportion equation
193.26 : 289.62 = 154.58 : x - Step 2: Convert to fraction form
193.26/289.62 = 154.58/x - Step 3: Cross multiply
193.26x = 289.62 × 154.58 - Step 4: Simplify right side
193.26x = 44,768.01 - Step 5: Solve for x
x = 44,768.01/193.26 - Step 6: Final answer
x = 231.65
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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.