Finding the Fourth Proportional to 201,239.92, 277,662.36 and 111,815.92
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Solution
The fourth proportional to 201,239.92, 277,662.36 and 111,815.92 is: 154,278.89
Step by Step Solution
- Step 1: Write the proportion equation
201,239.92 : 277,662.36 = 111,815.92 : x - Step 2: Convert to fraction form
201,239.92/277,662.36 = 111,815.92/x - Step 3: Cross multiply
201,239.92x = 277,662.36 × 111,815.92 - Step 4: Simplify right side
201,239.92x = 31,047,072,232.77 - Step 5: Solve for x
x = 31,047,072,232.77/201,239.92 - Step 6: Final answer
x = 154,278.89
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1.5x scale
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.