Finding the Fourth Proportional to 307,927.40, 461,891.10 and 189,213.80
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Solution
The fourth proportional to 307,927.40, 461,891.10 and 189,213.80 is: 283,820.70
Step by Step Solution
- Step 1: Write the proportion equation
307,927.40 : 461,891.10 = 189,213.80 : x - Step 2: Convert to fraction form
307,927.40/461,891.10 = 189,213.80/x - Step 3: Cross multiply
307,927.40x = 461,891.10 × 189,213.80 - Step 4: Simplify right side
307,927.40x = 87,396,170,217.18 - Step 5: Solve for x
x = 87,396,170,217.18/307,927.40 - Step 6: Final answer
x = 283,820.70
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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.