Finding the Fourth Proportional to 306,244.87, 422,637.02 and 170,309.19
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Solution
The fourth proportional to 306,244.87, 422,637.02 and 170,309.19 is: 235,037.30
Step by Step Solution
- Step 1: Write the proportion equation
306,244.87 : 422,637.02 = 170,309.19 : x - Step 2: Convert to fraction form
306,244.87/422,637.02 = 170,309.19/x - Step 3: Cross multiply
306,244.87x = 422,637.02 × 170,309.19 - Step 4: Simplify right side
306,244.87x = 71,978,968,540.21 - Step 5: Solve for x
x = 71,978,968,540.21/306,244.87 - Step 6: Final answer
x = 235,037.30
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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.