Finding the Fourth Proportional to 201,790.44, 278,179.92 and 141,173.28
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Solution
The fourth proportional to 201,790.44, 278,179.92 and 141,173.28 is: 194,615.62
Step by Step Solution
- Step 1: Write the proportion equation
201,790.44 : 278,179.92 = 141,173.28 : x - Step 2: Convert to fraction form
201,790.44/278,179.92 = 141,173.28/x - Step 3: Cross multiply
201,790.44x = 278,179.92 × 141,173.28 - Step 4: Simplify right side
201,790.44x = 39,271,571,736.54 - Step 5: Solve for x
x = 39,271,571,736.54/201,790.44 - Step 6: Final answer
x = 194,615.62
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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.