Finding the Fourth Proportional to 319.19, 440.51 and 194.99
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Solution
The fourth proportional to 319.19, 440.51 and 194.99 is: 269.10
Step by Step Solution
- Step 1: Write the proportion equation
319.19 : 440.51 = 194.99 : x - Step 2: Convert to fraction form
319.19/440.51 = 194.99/x - Step 3: Cross multiply
319.19x = 440.51 × 194.99 - Step 4: Simplify right side
319.19x = 85,891.87 - Step 5: Solve for x
x = 85,891.87/319.19 - Step 6: Final answer
x = 269.10
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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.