Finding the Fourth Proportional to 263,108.58, 394,704.11 and 85,573.99
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Solution
The fourth proportional to 263,108.58, 394,704.11 and 85,573.99 is: 128,374.40
Step by Step Solution
- Step 1: Write the proportion equation
263,108.58 : 394,704.11 = 85,573.99 : x - Step 2: Convert to fraction form
263,108.58/394,704.11 = 85,573.99/x - Step 3: Cross multiply
263,108.58x = 394,704.11 × 85,573.99 - Step 4: Simplify right side
263,108.58x = 33,776,405,562.10 - Step 5: Solve for x
x = 33,776,405,562.10/263,108.58 - Step 6: Final answer
x = 128,374.40
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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.