Finding the Fourth Proportional to 213,028.17, 293,879.80 and 126,938.84
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Solution
The fourth proportional to 213,028.17, 293,879.80 and 126,938.84 is: 175,116.56
Step by Step Solution
- Step 1: Write the proportion equation
213,028.17 : 293,879.80 = 126,938.84 : x - Step 2: Convert to fraction form
213,028.17/293,879.80 = 126,938.84/x - Step 3: Cross multiply
213,028.17x = 293,879.80 × 126,938.84 - Step 4: Simplify right side
213,028.17x = 37,304,760,911.43 - Step 5: Solve for x
x = 37,304,760,911.43/213,028.17 - Step 6: Final answer
x = 175,116.56
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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.