Finding the Fourth Proportional to 319.41, 440.84 and 195.18
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Solution
The fourth proportional to 319.41, 440.84 and 195.18 is: 269.38
Step by Step Solution
- Step 1: Write the proportion equation
319.41 : 440.84 = 195.18 : x - Step 2: Convert to fraction form
319.41/440.84 = 195.18/x - Step 3: Cross multiply
319.41x = 440.84 × 195.18 - Step 4: Simplify right side
319.41x = 86,041.99 - Step 5: Solve for x
x = 86,041.99/319.41 - Step 6: Final answer
x = 269.38
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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.