Finding the Fourth Proportional to 253,706.26, 350,115.07 and 138,982.40
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Solution
The fourth proportional to 253,706.26, 350,115.07 and 138,982.40 is: 191,795.95
Step by Step Solution
- Step 1: Write the proportion equation
253,706.26 : 350,115.07 = 138,982.40 : x - Step 2: Convert to fraction form
253,706.26/350,115.07 = 138,982.40/x - Step 3: Cross multiply
253,706.26x = 350,115.07 × 138,982.40 - Step 4: Simplify right side
253,706.26x = 48,659,832,704.77 - Step 5: Solve for x
x = 48,659,832,704.77/253,706.26 - Step 6: Final answer
x = 191,795.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.