Finding the Fourth Proportional to 378,377.04, 522,163.84 and 208,617.20
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Solution
The fourth proportional to 378,377.04, 522,163.84 and 208,617.20 is: 287,893.68
Step by Step Solution
- Step 1: Write the proportion equation
378,377.04 : 522,163.84 = 208,617.20 : x - Step 2: Convert to fraction form
378,377.04/522,163.84 = 208,617.20/x - Step 3: Cross multiply
378,377.04x = 522,163.84 × 208,617.20 - Step 4: Simplify right side
378,377.04x = 108,932,358,242.05 - Step 5: Solve for x
x = 108,932,358,242.05/378,377.04 - Step 6: Final answer
x = 287,893.68
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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.