Finding the Fourth Proportional to 263,142.20, 394,259.70 and 122,612.60
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Solution
The fourth proportional to 263,142.20, 394,259.70 and 122,612.60 is: 183,707.54
Step by Step Solution
- Step 1: Write the proportion equation
263,142.20 : 394,259.70 = 122,612.60 : x - Step 2: Convert to fraction form
263,142.20/394,259.70 = 122,612.60/x - Step 3: Cross multiply
263,142.20x = 394,259.70 × 122,612.60 - Step 4: Simplify right side
263,142.20x = 48,341,206,892.22 - Step 5: Solve for x
x = 48,341,206,892.22/263,142.20 - Step 6: Final answer
x = 183,707.54
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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.