Finding the Fourth Proportional to 319.70, 441.26 and 195.44
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Solution
The fourth proportional to 319.70, 441.26 and 195.44 is: 269.74
Step by Step Solution
- Step 1: Write the proportion equation
319.70 : 441.26 = 195.44 : x - Step 2: Convert to fraction form
319.70/441.26 = 195.44/x - Step 3: Cross multiply
319.70x = 441.26 × 195.44 - Step 4: Simplify right side
319.70x = 86,238.14 - Step 5: Solve for x
x = 86,238.14/319.70 - Step 6: Final answer
x = 269.74
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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.