Finding the Fourth Proportional to 378,998.07, 568,306.94 and 126,189.51
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Solution
The fourth proportional to 378,998.07, 568,306.94 and 126,189.51 is: 189,220.95
Step by Step Solution
- Step 1: Write the proportion equation
378,998.07 : 568,306.94 = 126,189.51 : x - Step 2: Convert to fraction form
378,998.07/568,306.94 = 126,189.51/x - Step 3: Cross multiply
378,998.07x = 568,306.94 × 126,189.51 - Step 4: Simplify right side
378,998.07x = 71,714,373,657.25 - Step 5: Solve for x
x = 71,714,373,657.25/378,998.07 - Step 6: Final answer
x = 189,220.95
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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.