Finding the Fourth Proportional to 263,842.06, 395,836.96 and 86,473.63
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Solution
The fourth proportional to 263,842.06, 395,836.96 and 86,473.63 is: 129,734.66
Step by Step Solution
- Step 1: Write the proportion equation
263,842.06 : 395,836.96 = 86,473.63 : x - Step 2: Convert to fraction form
263,842.06/395,836.96 = 86,473.63/x - Step 3: Cross multiply
263,842.06x = 395,836.96 × 86,473.63 - Step 4: Simplify right side
263,842.06x = 34,229,458,819.36 - Step 5: Solve for x
x = 34,229,458,819.36/263,842.06 - Step 6: Final answer
x = 129,734.66
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1.5x scale
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.