Finding the Fourth Proportional to 239.21, 330.09 and 140.97
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Solution
The fourth proportional to 239.21, 330.09 and 140.97 is: 194.53
Step by Step Solution
- Step 1: Write the proportion equation
239.21 : 330.09 = 140.97 : x - Step 2: Convert to fraction form
239.21/330.09 = 140.97/x - Step 3: Cross multiply
239.21x = 330.09 × 140.97 - Step 4: Simplify right side
239.21x = 46,532.79 - Step 5: Solve for x
x = 46,532.79/239.21 - Step 6: Final answer
x = 194.53
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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.