Finding the Fourth Proportional to 238.84, 357.99 and 211.49
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Solution
The fourth proportional to 238.84, 357.99 and 211.49 is: 316.99
Step by Step Solution
- Step 1: Write the proportion equation
238.84 : 357.99 = 211.49 : x - Step 2: Convert to fraction form
238.84/357.99 = 211.49/x - Step 3: Cross multiply
238.84x = 357.99 × 211.49 - Step 4: Simplify right side
238.84x = 75,709.52 - Step 5: Solve for x
x = 75,709.52/238.84 - Step 6: Final answer
x = 316.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.