Finding the Fourth Proportional to 201,189.36, 277,665.84 and 115,180.32
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Solution
The fourth proportional to 201,189.36, 277,665.84 and 115,180.32 is: 158,962.88
Step by Step Solution
- Step 1: Write the proportion equation
201,189.36 : 277,665.84 = 115,180.32 : x - Step 2: Convert to fraction form
201,189.36/277,665.84 = 115,180.32/x - Step 3: Cross multiply
201,189.36x = 277,665.84 × 115,180.32 - Step 4: Simplify right side
201,189.36x = 31,981,640,304.27 - Step 5: Solve for x
x = 31,981,640,304.27/201,189.36 - Step 6: Final answer
x = 158,962.88
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1.5x scale
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.