Finding the Fourth Proportional to 201,207.20, 301,810.80 and 68,091.80
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Solution
The fourth proportional to 201,207.20, 301,810.80 and 68,091.80 is: 102,137.70
Step by Step Solution
- Step 1: Write the proportion equation
201,207.20 : 301,810.80 = 68,091.80 : x - Step 2: Convert to fraction form
201,207.20/301,810.80 = 68,091.80/x - Step 3: Cross multiply
201,207.20x = 301,810.80 × 68,091.80 - Step 4: Simplify right side
201,207.20x = 20,550,840,631.44 - Step 5: Solve for x
x = 20,550,840,631.44/201,207.20 - Step 6: Final answer
x = 102,137.70
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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.