Finding the Fourth Proportional to 206,311.74, 284,712.81 and 115,687.26
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Solution
The fourth proportional to 206,311.74, 284,712.81 and 115,687.26 is: 159,649.88
Step by Step Solution
- Step 1: Write the proportion equation
206,311.74 : 284,712.81 = 115,687.26 : x - Step 2: Convert to fraction form
206,311.74/284,712.81 = 115,687.26/x - Step 3: Cross multiply
206,311.74x = 284,712.81 × 115,687.26 - Step 4: Simplify right side
206,311.74x = 32,937,644,875.80 - Step 5: Solve for x
x = 32,937,644,875.80/206,311.74 - Step 6: Final answer
x = 159,649.88
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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.