Finding the Fourth Proportional to 202,239.20, 303,358.80 and 199,128.80
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Solution
The fourth proportional to 202,239.20, 303,358.80 and 199,128.80 is: 298,693.20
Step by Step Solution
- Step 1: Write the proportion equation
202,239.20 : 303,358.80 = 199,128.80 : x - Step 2: Convert to fraction form
202,239.20/303,358.80 = 199,128.80/x - Step 3: Cross multiply
202,239.20x = 303,358.80 × 199,128.80 - Step 4: Simplify right side
202,239.20x = 60,407,473,813.44 - Step 5: Solve for x
x = 60,407,473,813.44/202,239.20 - Step 6: Final answer
x = 298,693.20
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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.