Finding the Fourth Proportional to 396,531.50, 547,198.64 and 215,239.53
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Solution
The fourth proportional to 396,531.50, 547,198.64 and 215,239.53 is: 297,022.50
Step by Step Solution
- Step 1: Write the proportion equation
396,531.50 : 547,198.64 = 215,239.53 : x - Step 2: Convert to fraction form
396,531.50/547,198.64 = 215,239.53/x - Step 3: Cross multiply
396,531.50x = 547,198.64 × 215,239.53 - Step 4: Simplify right side
396,531.50x = 117,778,776,795.19 - Step 5: Solve for x
x = 117,778,776,795.19/396,531.50 - Step 6: Final answer
x = 297,022.50
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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.