Finding the Fourth Proportional to 248,611.40, 372,917.10 and 143,343.80
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Solution
The fourth proportional to 248,611.40, 372,917.10 and 143,343.80 is: 215,015.70
Step by Step Solution
- Step 1: Write the proportion equation
248,611.40 : 372,917.10 = 143,343.80 : x - Step 2: Convert to fraction form
248,611.40/372,917.10 = 143,343.80/x - Step 3: Cross multiply
248,611.40x = 372,917.10 × 143,343.80 - Step 4: Simplify right side
248,611.40x = 53,455,354,198.98 - Step 5: Solve for x
x = 53,455,354,198.98/248,611.40 - Step 6: Final answer
x = 215,015.70
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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.