Finding the Fourth Proportional to 248,400.12, 342,793.74 and 135,222.84
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Solution
The fourth proportional to 248,400.12, 342,793.74 and 135,222.84 is: 186,608.38
Step by Step Solution
- Step 1: Write the proportion equation
248,400.12 : 342,793.74 = 135,222.84 : x - Step 2: Convert to fraction form
248,400.12/342,793.74 = 135,222.84/x - Step 3: Cross multiply
248,400.12x = 342,793.74 × 135,222.84 - Step 4: Simplify right side
248,400.12x = 46,353,543,057.02 - Step 5: Solve for x
x = 46,353,543,057.02/248,400.12 - Step 6: Final answer
x = 186,608.38
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1.5x scale
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.