Finding the Fourth Proportional to 201,231.80, 301,847.70 and 107,919.80
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Solution
The fourth proportional to 201,231.80, 301,847.70 and 107,919.80 is: 161,879.70
Step by Step Solution
- Step 1: Write the proportion equation
201,231.80 : 301,847.70 = 107,919.80 : x - Step 2: Convert to fraction form
201,231.80/301,847.70 = 107,919.80/x - Step 3: Cross multiply
201,231.80x = 301,847.70 × 107,919.80 - Step 4: Simplify right side
201,231.80x = 32,575,343,414.46 - Step 5: Solve for x
x = 32,575,343,414.46/201,231.80 - Step 6: Final answer
x = 161,879.70
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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.