Finding the Fourth Proportional to 201,906.20, 302,859.30 and 122,979.80
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Solution
The fourth proportional to 201,906.20, 302,859.30 and 122,979.80 is: 184,469.70
Step by Step Solution
- Step 1: Write the proportion equation
201,906.20 : 302,859.30 = 122,979.80 : x - Step 2: Convert to fraction form
201,906.20/302,859.30 = 122,979.80/x - Step 3: Cross multiply
201,906.20x = 302,859.30 × 122,979.80 - Step 4: Simplify right side
201,906.20x = 37,245,576,142.14 - Step 5: Solve for x
x = 37,245,576,142.14/201,906.20 - Step 6: Final answer
x = 184,469.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.