Finding the Fourth Proportional to 319.63, 441.09 and 181.63
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Solution
The fourth proportional to 319.63, 441.09 and 181.63 is: 250.64
Step by Step Solution
- Step 1: Write the proportion equation
319.63 : 441.09 = 181.63 : x - Step 2: Convert to fraction form
319.63/441.09 = 181.63/x - Step 3: Cross multiply
319.63x = 441.09 × 181.63 - Step 4: Simplify right side
319.63x = 80,112.06 - Step 5: Solve for x
x = 80,112.06/319.63 - Step 6: Final answer
x = 250.64
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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.