Finding the Fourth Proportional to 373,578.42, 515,517.21 and 212,472.66
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Solution
The fourth proportional to 373,578.42, 515,517.21 and 212,472.66 is: 293,200.32
Step by Step Solution
- Step 1: Write the proportion equation
373,578.42 : 515,517.21 = 212,472.66 : x - Step 2: Convert to fraction form
373,578.42/515,517.21 = 212,472.66/x - Step 3: Cross multiply
373,578.42x = 515,517.21 × 212,472.66 - Step 4: Simplify right side
373,578.42x = 109,533,312,884.48 - Step 5: Solve for x
x = 109,533,312,884.48/373,578.42 - Step 6: Final answer
x = 293,200.32
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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.