Finding the Fourth Proportional to 225,824.11, 311,614.81 and 130,361.56
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Solution
The fourth proportional to 225,824.11, 311,614.81 and 130,361.56 is: 179,885.99
Step by Step Solution
- Step 1: Write the proportion equation
225,824.11 : 311,614.81 = 130,361.56 : x - Step 2: Convert to fraction form
225,824.11/311,614.81 = 130,361.56/x - Step 3: Cross multiply
225,824.11x = 311,614.81 × 130,361.56 - Step 4: Simplify right side
225,824.11x = 40,622,592,750.70 - Step 5: Solve for x
x = 40,622,592,750.70/225,824.11 - Step 6: Final answer
x = 179,885.99
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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.