Finding the Fourth Proportional to 311,498.97, 430,055.33 and 204,256.05
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Solution
The fourth proportional to 311,498.97, 430,055.33 and 204,256.05 is: 281,995.80
Step by Step Solution
- Step 1: Write the proportion equation
311,498.97 : 430,055.33 = 204,256.05 : x - Step 2: Convert to fraction form
311,498.97/430,055.33 = 204,256.05/x - Step 3: Cross multiply
311,498.97x = 430,055.33 × 204,256.05 - Step 4: Simplify right side
311,498.97x = 87,841,401,965.97 - Step 5: Solve for x
x = 87,841,401,965.97/311,498.97 - Step 6: Final answer
x = 281,995.80
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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.