Finding the Fourth Proportional to 389,104.19, 536,872.37 and 236,138.98
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Solution
The fourth proportional to 389,104.19, 536,872.37 and 236,138.98 is: 325,816.32
Step by Step Solution
- Step 1: Write the proportion equation
389,104.19 : 536,872.37 = 236,138.98 : x - Step 2: Convert to fraction form
389,104.19/536,872.37 = 236,138.98/x - Step 3: Cross multiply
389,104.19x = 536,872.37 × 236,138.98 - Step 4: Simplify right side
389,104.19x = 126,776,493,841.98 - Step 5: Solve for x
x = 126,776,493,841.98/389,104.19 - Step 6: Final answer
x = 325,816.32
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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.