Finding the Fourth Proportional to 203,412.32, 305,138.99 and 53,662.97
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Solution
The fourth proportional to 203,412.32, 305,138.99 and 53,662.97 is: 80,499.86
Step by Step Solution
- Step 1: Write the proportion equation
203,412.32 : 305,138.99 = 53,662.97 : x - Step 2: Convert to fraction form
203,412.32/305,138.99 = 53,662.97/x - Step 3: Cross multiply
203,412.32x = 305,138.99 × 53,662.97 - Step 4: Simplify right side
203,412.32x = 16,374,662,672.19 - Step 5: Solve for x
x = 16,374,662,672.19/203,412.32 - Step 6: Final answer
x = 80,499.86
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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.