Finding the Fourth Proportional to 285,514.80, 394,202.88 and 255,202.98
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Solution
The fourth proportional to 285,514.80, 394,202.88 and 255,202.98 is: 352,352.14
Step by Step Solution
- Step 1: Write the proportion equation
285,514.80 : 394,202.88 = 255,202.98 : x - Step 2: Convert to fraction form
285,514.80/394,202.88 = 255,202.98/x - Step 3: Cross multiply
285,514.80x = 394,202.88 × 255,202.98 - Step 4: Simplify right side
285,514.80x = 100,601,749,700.58 - Step 5: Solve for x
x = 100,601,749,700.58/285,514.80 - Step 6: Final answer
x = 352,352.14
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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.