Finding the Fourth Proportional to 263,164.75, 394,420.06 and 120,859.09
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Solution
The fourth proportional to 263,164.75, 394,420.06 and 120,859.09 is: 181,138.43
Step by Step Solution
- Step 1: Write the proportion equation
263,164.75 : 394,420.06 = 120,859.09 : x - Step 2: Convert to fraction form
263,164.75/394,420.06 = 120,859.09/x - Step 3: Cross multiply
263,164.75x = 394,420.06 × 120,859.09 - Step 4: Simplify right side
263,164.75x = 47,669,248,354.45 - Step 5: Solve for x
x = 47,669,248,354.45/263,164.75 - Step 6: Final answer
x = 181,138.43
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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.