Finding the Fourth Proportional to 201,145.70, 301,718.55 and 131,161.70
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Solution
The fourth proportional to 201,145.70, 301,718.55 and 131,161.70 is: 196,742.55
Step by Step Solution
- Step 1: Write the proportion equation
201,145.70 : 301,718.55 = 131,161.70 : x - Step 2: Convert to fraction form
201,145.70/301,718.55 = 131,161.70/x - Step 3: Cross multiply
201,145.70x = 301,718.55 × 131,161.70 - Step 4: Simplify right side
201,145.70x = 39,573,917,939.54 - Step 5: Solve for x
x = 39,573,917,939.54/201,145.70 - Step 6: Final answer
x = 196,742.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.