Finding the Fourth Proportional to 201,904.88, 278,640.94 and 111,260.70
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Solution
The fourth proportional to 201,904.88, 278,640.94 and 111,260.70 is: 153,546.49
Step by Step Solution
- Step 1: Write the proportion equation
201,904.88 : 278,640.94 = 111,260.70 : x - Step 2: Convert to fraction form
201,904.88/278,640.94 = 111,260.70/x - Step 3: Cross multiply
201,904.88x = 278,640.94 × 111,260.70 - Step 4: Simplify right side
201,904.88x = 31,001,786,033.06 - Step 5: Solve for x
x = 31,001,786,033.06/201,904.88 - Step 6: Final answer
x = 153,546.49
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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.