Finding the Fourth Proportional to 201,126.91, 277,475.76 and 129,548.42
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Solution
The fourth proportional to 201,126.91, 277,475.76 and 129,548.42 is: 178,725.69
Step by Step Solution
- Step 1: Write the proportion equation
201,126.91 : 277,475.76 = 129,548.42 : x - Step 2: Convert to fraction form
201,126.91/277,475.76 = 129,548.42/x - Step 3: Cross multiply
201,126.91x = 277,475.76 × 129,548.42 - Step 4: Simplify right side
201,126.91x = 35,946,546,296.30 - Step 5: Solve for x
x = 35,946,546,296.30/201,126.91 - Step 6: Final answer
x = 178,725.69
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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.