Finding the Fourth Proportional to 378,364.08, 522,145.94 and 208,604.28
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Solution
The fourth proportional to 378,364.08, 522,145.94 and 208,604.28 is: 287,875.84
Step by Step Solution
- Step 1: Write the proportion equation
378,364.08 : 522,145.94 = 208,604.28 : x - Step 2: Convert to fraction form
378,364.08/522,145.94 = 208,604.28/x - Step 3: Cross multiply
378,364.08x = 522,145.94 × 208,604.28 - Step 4: Simplify right side
378,364.08x = 108,921,876,825.60 - Step 5: Solve for x
x = 108,921,876,825.60/378,364.08 - Step 6: Final answer
x = 287,875.84
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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.