Finding the Fourth Proportional to 455,245.80, 682,868.70 and 219,049.80
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Solution
The fourth proportional to 455,245.80, 682,868.70 and 219,049.80 is: 328,574.70
Step by Step Solution
- Step 1: Write the proportion equation
455,245.80 : 682,868.70 = 219,049.80 : x - Step 2: Convert to fraction form
455,245.80/682,868.70 = 219,049.80/x - Step 3: Cross multiply
455,245.80x = 682,868.70 × 219,049.80 - Step 4: Simplify right side
455,245.80x = 149,582,252,161.26 - Step 5: Solve for x
x = 149,582,252,161.26/455,245.80 - Step 6: Final answer
x = 328,574.70
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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.