Finding the Fourth Proportional to 394,313.20, 591,858.60 and 194,858.80
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Solution
The fourth proportional to 394,313.20, 591,858.60 and 194,858.80 is: 292,480.33
Step by Step Solution
- Step 1: Write the proportion equation
394,313.20 : 591,858.60 = 194,858.80 : x - Step 2: Convert to fraction form
394,313.20/591,858.60 = 194,858.80/x - Step 3: Cross multiply
394,313.20x = 591,858.60 × 194,858.80 - Step 4: Simplify right side
394,313.20x = 115,328,856,565.68 - Step 5: Solve for x
x = 115,328,856,565.68/394,313.20 - Step 6: Final answer
x = 292,480.33
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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.