Finding the Fourth Proportional to 263,609.60, 395,414.40 and 193,107.20
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Solution
The fourth proportional to 263,609.60, 395,414.40 and 193,107.20 is: 289,660.80
Step by Step Solution
- Step 1: Write the proportion equation
263,609.60 : 395,414.40 = 193,107.20 : x - Step 2: Convert to fraction form
263,609.60/395,414.40 = 193,107.20/x - Step 3: Cross multiply
263,609.60x = 395,414.40 × 193,107.20 - Step 4: Simplify right side
263,609.60x = 76,357,367,623.68 - Step 5: Solve for x
x = 76,357,367,623.68/263,609.60 - Step 6: Final answer
x = 289,660.80
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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.