Finding the Fourth Proportional to 263,037.20, 394,555.80 and 73,497.20
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Solution
The fourth proportional to 263,037.20, 394,555.80 and 73,497.20 is: 110,245.80
Step by Step Solution
- Step 1: Write the proportion equation
263,037.20 : 394,555.80 = 73,497.20 : x - Step 2: Convert to fraction form
263,037.20/394,555.80 = 73,497.20/x - Step 3: Cross multiply
263,037.20x = 394,555.80 × 73,497.20 - Step 4: Simplify right side
263,037.20x = 28,998,746,543.76 - Step 5: Solve for x
x = 28,998,746,543.76/263,037.20 - Step 6: Final answer
x = 110,245.80
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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.