Finding the Fourth Proportional to 306,206.31, 422,578.79 and 170,254.09
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Solution
The fourth proportional to 306,206.31, 422,578.79 and 170,254.09 is: 234,958.47
Step by Step Solution
- Step 1: Write the proportion equation
306,206.31 : 422,578.79 = 170,254.09 : x - Step 2: Convert to fraction form
306,206.31/422,578.79 = 170,254.09/x - Step 3: Cross multiply
306,206.31x = 422,578.79 × 170,254.09 - Step 4: Simplify right side
306,206.31x = 71,945,767,344.75 - Step 5: Solve for x
x = 71,945,767,344.75/306,206.31 - Step 6: Final answer
x = 234,958.47
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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.