Finding the Fourth Proportional to 194,361.20, 268,126.80 and 113,739.26
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Solution
The fourth proportional to 194,361.20, 268,126.80 and 113,739.26 is: 156,906.54
Step by Step Solution
- Step 1: Write the proportion equation
194,361.20 : 268,126.80 = 113,739.26 : x - Step 2: Convert to fraction form
194,361.20/268,126.80 = 113,739.26/x - Step 3: Cross multiply
194,361.20x = 268,126.80 × 113,739.26 - Step 4: Simplify right side
194,361.20x = 30,496,543,818.17 - Step 5: Solve for x
x = 30,496,543,818.17/194,361.20 - Step 6: Final answer
x = 156,906.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.