Finding the Fourth Proportional to 227.75, 314.19 and 153.99
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Solution
The fourth proportional to 227.75, 314.19 and 153.99 is: 212.44
Step by Step Solution
- Step 1: Write the proportion equation
227.75 : 314.19 = 153.99 : x - Step 2: Convert to fraction form
227.75/314.19 = 153.99/x - Step 3: Cross multiply
227.75x = 314.19 × 153.99 - Step 4: Simplify right side
227.75x = 48,382.12 - Step 5: Solve for x
x = 48,382.12/227.75 - Step 6: Final answer
x = 212.44
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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.