Finding the Fourth Proportional to 239.70, 357.99 and 185.70
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Solution
The fourth proportional to 239.70, 357.99 and 185.70 is: 277.34
Step by Step Solution
- Step 1: Write the proportion equation
239.70 : 357.99 = 185.70 : x - Step 2: Convert to fraction form
239.70/357.99 = 185.70/x - Step 3: Cross multiply
239.70x = 357.99 × 185.70 - Step 4: Simplify right side
239.70x = 66,478.74 - Step 5: Solve for x
x = 66,478.74/239.70 - Step 6: Final answer
x = 277.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.