Finding the Fourth Proportional to 201,907.20, 302,860.80 and 192,721.80
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Solution
The fourth proportional to 201,907.20, 302,860.80 and 192,721.80 is: 289,082.70
Step by Step Solution
- Step 1: Write the proportion equation
201,907.20 : 302,860.80 = 192,721.80 : x - Step 2: Convert to fraction form
201,907.20/302,860.80 = 192,721.80/x - Step 3: Cross multiply
201,907.20x = 302,860.80 × 192,721.80 - Step 4: Simplify right side
201,907.20x = 58,367,878,525.44 - Step 5: Solve for x
x = 58,367,878,525.44/201,907.20 - Step 6: Final answer
x = 289,082.70
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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.