Finding the Fourth Proportional to 253,163.60, 379,745.40 and 66,175.10
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Solution
The fourth proportional to 253,163.60, 379,745.40 and 66,175.10 is: 99,262.65
Step by Step Solution
- Step 1: Write the proportion equation
253,163.60 : 379,745.40 = 66,175.10 : x - Step 2: Convert to fraction form
253,163.60/379,745.40 = 66,175.10/x - Step 3: Cross multiply
253,163.60x = 379,745.40 × 66,175.10 - Step 4: Simplify right side
253,163.60x = 25,129,689,819.54 - Step 5: Solve for x
x = 25,129,689,819.54/253,163.60 - Step 6: Final answer
x = 99,262.65
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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.