Finding the Fourth Proportional to 239.88, 330.99 and 141.62
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Solution
The fourth proportional to 239.88, 330.99 and 141.62 is: 195.41
Step by Step Solution
- Step 1: Write the proportion equation
239.88 : 330.99 = 141.62 : x - Step 2: Convert to fraction form
239.88/330.99 = 141.62/x - Step 3: Cross multiply
239.88x = 330.99 × 141.62 - Step 4: Simplify right side
239.88x = 46,873.15 - Step 5: Solve for x
x = 46,873.15/239.88 - Step 6: Final answer
x = 195.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.