Finding the Fourth Proportional to 397,182.09, 548,236.67 and 253,942.70
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Solution
The fourth proportional to 397,182.09, 548,236.67 and 253,942.70 is: 350,521.09
Step by Step Solution
- Step 1: Write the proportion equation
397,182.09 : 548,236.67 = 253,942.70 : x - Step 2: Convert to fraction form
397,182.09/548,236.67 = 253,942.70/x - Step 3: Cross multiply
397,182.09x = 548,236.67 × 253,942.70 - Step 4: Simplify right side
397,182.09x = 139,220,700,218.81 - Step 5: Solve for x
x = 139,220,700,218.81/397,182.09 - Step 6: Final answer
x = 350,521.09
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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.