Finding the Fourth Proportional to 201,995.20, 302,992.80 and 192,809.80
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Solution
The fourth proportional to 201,995.20, 302,992.80 and 192,809.80 is: 289,214.70
Step by Step Solution
- Step 1: Write the proportion equation
201,995.20 : 302,992.80 = 192,809.80 : x - Step 2: Convert to fraction form
201,995.20/302,992.80 = 192,809.80/x - Step 3: Cross multiply
201,995.20x = 302,992.80 × 192,809.80 - Step 4: Simplify right side
201,995.20x = 58,419,981,169.44 - Step 5: Solve for x
x = 58,419,981,169.44/201,995.20 - Step 6: Final answer
x = 289,214.70
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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.