Finding the Fourth Proportional to 378,918.25, 568,378.06 and 252,804.90
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Solution
The fourth proportional to 378,918.25, 568,378.06 and 252,804.90 is: 379,207.80
Step by Step Solution
- Step 1: Write the proportion equation
378,918.25 : 568,378.06 = 252,804.90 : x - Step 2: Convert to fraction form
378,918.25/568,378.06 = 252,804.90/x - Step 3: Cross multiply
378,918.25x = 568,378.06 × 252,804.90 - Step 4: Simplify right side
378,918.25x = 143,688,758,344.80 - Step 5: Solve for x
x = 143,688,758,344.80/378,918.25 - Step 6: Final answer
x = 379,207.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.