Finding the Fourth Proportional to 378,954.84, 522,939.28 and 215,595.96
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Solution
The fourth proportional to 378,954.84, 522,939.28 and 215,595.96 is: 297,511.96
Step by Step Solution
- Step 1: Write the proportion equation
378,954.84 : 522,939.28 = 215,595.96 : x - Step 2: Convert to fraction form
378,954.84/522,939.28 = 215,595.96/x - Step 3: Cross multiply
378,954.84x = 522,939.28 × 215,595.96 - Step 4: Simplify right side
378,954.84x = 112,743,596,093.31 - Step 5: Solve for x
x = 112,743,596,093.31/378,954.84 - Step 6: Final answer
x = 297,511.96
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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.