Finding the Fourth Proportional to 373,638.11, 515,631.94 and 212,516.33
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Solution
The fourth proportional to 373,638.11, 515,631.94 and 212,516.33 is: 293,278.99
Step by Step Solution
- Step 1: Write the proportion equation
373,638.11 : 515,631.94 = 212,516.33 : x - Step 2: Convert to fraction form
373,638.11/515,631.94 = 212,516.33/x - Step 3: Cross multiply
373,638.11x = 515,631.94 × 212,516.33 - Step 4: Simplify right side
373,638.11x = 109,580,204,410.13 - Step 5: Solve for x
x = 109,580,204,410.13/373,638.11 - Step 6: Final answer
x = 293,278.99
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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.