Finding the Fourth Proportional to 203,464.88, 280,770.09 and 112,815.44
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Solution
The fourth proportional to 203,464.88, 280,770.09 and 112,815.44 is: 155,678.96
Step by Step Solution
- Step 1: Write the proportion equation
203,464.88 : 280,770.09 = 112,815.44 : x - Step 2: Convert to fraction form
203,464.88/280,770.09 = 112,815.44/x - Step 3: Cross multiply
203,464.88x = 280,770.09 × 112,815.44 - Step 4: Simplify right side
203,464.88x = 31,675,201,242.19 - Step 5: Solve for x
x = 31,675,201,242.19/203,464.88 - Step 6: Final answer
x = 155,678.96
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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.