Finding the Fourth Proportional to 239.67, 359.19 and 136.80
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Solution
The fourth proportional to 239.67, 359.19 and 136.80 is: 205.02
Step by Step Solution
- Step 1: Write the proportion equation
239.67 : 359.19 = 136.80 : x - Step 2: Convert to fraction form
239.67/359.19 = 136.80/x - Step 3: Cross multiply
239.67x = 359.19 × 136.80 - Step 4: Simplify right side
239.67x = 49,137.19 - Step 5: Solve for x
x = 49,137.19/239.67 - Step 6: Final answer
x = 205.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.