Finding the Fourth Proportional to 201,643.20, 302,464.80 and 198,532.80
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Solution
The fourth proportional to 201,643.20, 302,464.80 and 198,532.80 is: 297,799.20
Step by Step Solution
- Step 1: Write the proportion equation
201,643.20 : 302,464.80 = 198,532.80 : x - Step 2: Convert to fraction form
201,643.20/302,464.80 = 198,532.80/x - Step 3: Cross multiply
201,643.20x = 302,464.80 × 198,532.80 - Step 4: Simplify right side
201,643.20x = 60,049,183,645.44 - Step 5: Solve for x
x = 60,049,183,645.44/201,643.20 - Step 6: Final answer
x = 297,799.20
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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.