Finding the Fourth Proportional to 201,668.10, 302,720.85 and 126,872.70
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Solution
The fourth proportional to 201,668.10, 302,720.85 and 126,872.70 is: 190,446.64
Step by Step Solution
- Step 1: Write the proportion equation
201,668.10 : 302,720.85 = 126,872.70 : x - Step 2: Convert to fraction form
201,668.10/302,720.85 = 126,872.70/x - Step 3: Cross multiply
201,668.10x = 302,720.85 × 126,872.70 - Step 4: Simplify right side
201,668.10x = 38,407,011,585.80 - Step 5: Solve for x
x = 38,407,011,585.80/201,668.10 - Step 6: Final answer
x = 190,446.64
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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.