Finding the Fourth Proportional to 205.74, 306.18 and 198.99
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Solution
The fourth proportional to 205.74, 306.18 and 198.99 is: 296.13
Step by Step Solution
- Step 1: Write the proportion equation
205.74 : 306.18 = 198.99 : x - Step 2: Convert to fraction form
205.74/306.18 = 198.99/x - Step 3: Cross multiply
205.74x = 306.18 × 198.99 - Step 4: Simplify right side
205.74x = 60,926.76 - Step 5: Solve for x
x = 60,926.76/205.74 - Step 6: Final answer
x = 296.13
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.