Finding the Fourth Proportional to 206,508.36, 284,984.10 and 115,883.76
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Solution
The fourth proportional to 206,508.36, 284,984.10 and 115,883.76 is: 159,921.03
Step by Step Solution
- Step 1: Write the proportion equation
206,508.36 : 284,984.10 = 115,883.76 : x - Step 2: Convert to fraction form
206,508.36/284,984.10 = 115,883.76/x - Step 3: Cross multiply
206,508.36x = 284,984.10 × 115,883.76 - Step 4: Simplify right side
206,508.36x = 33,025,029,048.22 - Step 5: Solve for x
x = 33,025,029,048.22/206,508.36 - Step 6: Final answer
x = 159,921.03
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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.