Finding the Fourth Proportional to 239.67, 359.55 and 198.99
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Solution
The fourth proportional to 239.67, 359.55 and 198.99 is: 298.52
Step by Step Solution
- Step 1: Write the proportion equation
239.67 : 359.55 = 198.99 : x - Step 2: Convert to fraction form
239.67/359.55 = 198.99/x - Step 3: Cross multiply
239.67x = 359.55 × 198.99 - Step 4: Simplify right side
239.67x = 71,546.85 - Step 5: Solve for x
x = 71,546.85/239.67 - Step 6: Final answer
x = 298.52
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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.