Finding the Fourth Proportional to 373,458.19, 515,369.82 and 212,313.28
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Solution
The fourth proportional to 373,458.19, 515,369.82 and 212,313.28 is: 292,990.92
Step by Step Solution
- Step 1: Write the proportion equation
373,458.19 : 515,369.82 = 212,313.28 : x - Step 2: Convert to fraction form
373,458.19/515,369.82 = 212,313.28/x - Step 3: Cross multiply
373,458.19x = 515,369.82 × 212,313.28 - Step 4: Simplify right side
373,458.19x = 109,419,856,897.21 - Step 5: Solve for x
x = 109,419,856,897.21/373,458.19 - Step 6: Final answer
x = 292,990.92
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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.