Finding the Fourth Proportional to 408,163.39, 612,245.20 and 119,975.08
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Solution
The fourth proportional to 408,163.39, 612,245.20 and 119,975.08 is: 179,962.65
Step by Step Solution
- Step 1: Write the proportion equation
408,163.39 : 612,245.20 = 119,975.08 : x - Step 2: Convert to fraction form
408,163.39/612,245.20 = 119,975.08/x - Step 3: Cross multiply
408,163.39x = 612,245.20 × 119,975.08 - Step 4: Simplify right side
408,163.39x = 73,454,166,849.62 - Step 5: Solve for x
x = 73,454,166,849.62/408,163.39 - Step 6: Final answer
x = 179,962.65
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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.