Finding the Fourth Proportional to 201,755.34, 278,424.27 and 111,114.09
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Solution
The fourth proportional to 201,755.34, 278,424.27 and 111,114.09 is: 153,338.49
Step by Step Solution
- Step 1: Write the proportion equation
201,755.34 : 278,424.27 = 111,114.09 : x - Step 2: Convert to fraction form
201,755.34/278,424.27 = 111,114.09/x - Step 3: Cross multiply
201,755.34x = 278,424.27 × 111,114.09 - Step 4: Simplify right side
201,755.34x = 30,936,859,394.96 - Step 5: Solve for x
x = 30,936,859,394.96/201,755.34 - Step 6: Final answer
x = 153,338.49
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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.