Finding the Fourth Proportional to 201,685.44, 278,323.20 and 112,261.44
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Solution
The fourth proportional to 201,685.44, 278,323.20 and 112,261.44 is: 154,919.28
Step by Step Solution
- Step 1: Write the proportion equation
201,685.44 : 278,323.20 = 112,261.44 : x - Step 2: Convert to fraction form
201,685.44/278,323.20 = 112,261.44/x - Step 3: Cross multiply
201,685.44x = 278,323.20 × 112,261.44 - Step 4: Simplify right side
201,685.44x = 31,244,963,217.41 - Step 5: Solve for x
x = 31,244,963,217.41/201,685.44 - Step 6: Final answer
x = 154,919.28
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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.