Finding the Fourth Proportional to 378,860.91, 567,989.58 and 218,755.28
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Solution
The fourth proportional to 378,860.91, 567,989.58 and 218,755.28 is: 327,958.68
Step by Step Solution
- Step 1: Write the proportion equation
378,860.91 : 567,989.58 = 218,755.28 : x - Step 2: Convert to fraction form
378,860.91/567,989.58 = 218,755.28/x - Step 3: Cross multiply
378,860.91x = 567,989.58 × 218,755.28 - Step 4: Simplify right side
378,860.91x = 124,250,721,850.29 - Step 5: Solve for x
x = 124,250,721,850.29/378,860.91 - Step 6: Final answer
x = 327,958.68
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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.