Finding the Fourth Proportional to 201,940.17, 278,664.93 and 111,291.09
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Solution
The fourth proportional to 201,940.17, 278,664.93 and 111,291.09 is: 153,574.81
Step by Step Solution
- Step 1: Write the proportion equation
201,940.17 : 278,664.93 = 111,291.09 : x - Step 2: Convert to fraction form
201,940.17/278,664.93 = 111,291.09/x - Step 3: Cross multiply
201,940.17x = 278,664.93 × 111,291.09 - Step 4: Simplify right side
201,940.17x = 31,012,923,804.47 - Step 5: Solve for x
x = 31,012,923,804.47/201,940.17 - Step 6: Final answer
x = 153,574.81
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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.