Finding the Fourth Proportional to 201,846.80, 302,770.20 and 138,861.20
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Solution
The fourth proportional to 201,846.80, 302,770.20 and 138,861.20 is: 208,291.80
Step by Step Solution
- Step 1: Write the proportion equation
201,846.80 : 302,770.20 = 138,861.20 : x - Step 2: Convert to fraction form
201,846.80/302,770.20 = 138,861.20/x - Step 3: Cross multiply
201,846.80x = 302,770.20 × 138,861.20 - Step 4: Simplify right side
201,846.80x = 42,043,033,296.24 - Step 5: Solve for x
x = 42,043,033,296.24/201,846.80 - Step 6: Final answer
x = 208,291.80
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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.