Finding the Fourth Proportional to 319.88, 441.42 and 179.99
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Solution
The fourth proportional to 319.88, 441.42 and 179.99 is: 248.38
Step by Step Solution
- Step 1: Write the proportion equation
319.88 : 441.42 = 179.99 : x - Step 2: Convert to fraction form
319.88/441.42 = 179.99/x - Step 3: Cross multiply
319.88x = 441.42 × 179.99 - Step 4: Simplify right side
319.88x = 79,451.19 - Step 5: Solve for x
x = 79,451.19/319.88 - Step 6: Final answer
x = 248.38
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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.