Finding the Fourth Proportional to 326,645.15, 489,736.07 and 126,797.09
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Solution
The fourth proportional to 326,645.15, 489,736.07 and 126,797.09 is: 190,105.71
Step by Step Solution
- Step 1: Write the proportion equation
326,645.15 : 489,736.07 = 126,797.09 : x - Step 2: Convert to fraction form
326,645.15/489,736.07 = 126,797.09/x - Step 3: Cross multiply
326,645.15x = 489,736.07 × 126,797.09 - Step 4: Simplify right side
326,645.15x = 62,097,107,910.05 - Step 5: Solve for x
x = 62,097,107,910.05/326,645.15 - Step 6: Final answer
x = 190,105.71
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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.