Finding the Fourth Proportional to 412,245.20, 618,367.80 and 202,293.20
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Solution
The fourth proportional to 412,245.20, 618,367.80 and 202,293.20 is: 303,439.80
Step by Step Solution
- Step 1: Write the proportion equation
412,245.20 : 618,367.80 = 202,293.20 : x - Step 2: Convert to fraction form
412,245.20/618,367.80 = 202,293.20/x - Step 3: Cross multiply
412,245.20x = 618,367.80 × 202,293.20 - Step 4: Simplify right side
412,245.20x = 125,091,601,038.96 - Step 5: Solve for x
x = 125,091,601,038.96/412,245.20 - Step 6: Final answer
x = 303,439.80
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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.