Finding the Fourth Proportional to 203,021.43, 280,105.16 and 118,122.09
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Solution
The fourth proportional to 203,021.43, 280,105.16 and 118,122.09 is: 162,971.01
Step by Step Solution
- Step 1: Write the proportion equation
203,021.43 : 280,105.16 = 118,122.09 : x - Step 2: Convert to fraction form
203,021.43/280,105.16 = 118,122.09/x - Step 3: Cross multiply
203,021.43x = 280,105.16 × 118,122.09 - Step 4: Simplify right side
203,021.43x = 33,086,606,918.98 - Step 5: Solve for x
x = 33,086,606,918.98/203,021.43 - Step 6: Final answer
x = 162,971.01
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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.