Finding the Fourth Proportional to 201,991.20, 302,986.80 and 192,805.80
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Solution
The fourth proportional to 201,991.20, 302,986.80 and 192,805.80 is: 289,208.70
Step by Step Solution
- Step 1: Write the proportion equation
201,991.20 : 302,986.80 = 192,805.80 : x - Step 2: Convert to fraction form
201,991.20/302,986.80 = 192,805.80/x - Step 3: Cross multiply
201,991.20x = 302,986.80 × 192,805.80 - Step 4: Simplify right side
201,991.20x = 58,417,612,363.44 - Step 5: Solve for x
x = 58,417,612,363.44/201,991.20 - Step 6: Final answer
x = 289,208.70
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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.