Finding the Fourth Proportional to 263,272.80, 394,909.20 and 245,647.20
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Solution
The fourth proportional to 263,272.80, 394,909.20 and 245,647.20 is: 368,470.80
Step by Step Solution
- Step 1: Write the proportion equation
263,272.80 : 394,909.20 = 245,647.20 : x - Step 2: Convert to fraction form
263,272.80/394,909.20 = 245,647.20/x - Step 3: Cross multiply
263,272.80x = 394,909.20 × 245,647.20 - Step 4: Simplify right side
263,272.80x = 97,008,339,234.24 - Step 5: Solve for x
x = 97,008,339,234.24/263,272.80 - Step 6: Final answer
x = 368,470.80
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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.