Finding the Fourth Proportional to 203,921.24, 305,713.40 and 89,987.92
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Solution
The fourth proportional to 203,921.24, 305,713.40 and 89,987.92 is: 134,907.54
Step by Step Solution
- Step 1: Write the proportion equation
203,921.24 : 305,713.40 = 89,987.92 : x - Step 2: Convert to fraction form
203,921.24/305,713.40 = 89,987.92/x - Step 3: Cross multiply
203,921.24x = 305,713.40 × 89,987.92 - Step 4: Simplify right side
203,921.24x = 27,510,512,982.13 - Step 5: Solve for x
x = 27,510,512,982.13/203,921.24 - Step 6: Final answer
x = 134,907.54
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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.