Finding the Fourth Proportional to 201,212.20, 277,593.20 and 129,633.96
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Solution
The fourth proportional to 201,212.20, 277,593.20 and 129,633.96 is: 178,843.56
Step by Step Solution
- Step 1: Write the proportion equation
201,212.20 : 277,593.20 = 129,633.96 : x - Step 2: Convert to fraction form
201,212.20/277,593.20 = 129,633.96/x - Step 3: Cross multiply
201,212.20x = 277,593.20 × 129,633.96 - Step 4: Simplify right side
201,212.20x = 35,985,505,785.07 - Step 5: Solve for x
x = 35,985,505,785.07/201,212.20 - Step 6: Final answer
x = 178,843.56
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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.