Finding the Fourth Proportional to 239.77, 359.79 and 136.99
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Solution
The fourth proportional to 239.77, 359.79 and 136.99 is: 205.56
Step by Step Solution
- Step 1: Write the proportion equation
239.77 : 359.79 = 136.99 : x - Step 2: Convert to fraction form
239.77/359.79 = 136.99/x - Step 3: Cross multiply
239.77x = 359.79 × 136.99 - Step 4: Simplify right side
239.77x = 49,287.63 - Step 5: Solve for x
x = 49,287.63/239.77 - Step 6: Final answer
x = 205.56
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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.