Finding the Fourth Proportional to 378,336.29, 522,108.11 and 208,576.49
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Solution
The fourth proportional to 378,336.29, 522,108.11 and 208,576.49 is: 287,837.78
Step by Step Solution
- Step 1: Write the proportion equation
378,336.29 : 522,108.11 = 208,576.49 : x - Step 2: Convert to fraction form
378,336.29/522,108.11 = 208,576.49/x - Step 3: Cross multiply
378,336.29x = 522,108.11 × 208,576.49 - Step 4: Simplify right side
378,336.29x = 108,899,474,895.24 - Step 5: Solve for x
x = 108,899,474,895.24/378,336.29 - Step 6: Final answer
x = 287,837.78
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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.