Finding the Fourth Proportional to 306,197.92, 422,576.70 and 170,243.07
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Solution
The fourth proportional to 306,197.92, 422,576.70 and 170,243.07 is: 234,948.53
Step by Step Solution
- Step 1: Write the proportion equation
306,197.92 : 422,576.70 = 170,243.07 : x - Step 2: Convert to fraction form
306,197.92/422,576.70 = 170,243.07/x - Step 3: Cross multiply
306,197.92x = 422,576.70 × 170,243.07 - Step 4: Simplify right side
306,197.92x = 71,940,752,495.39 - Step 5: Solve for x
x = 71,940,752,495.39/306,197.92 - Step 6: Final answer
x = 234,948.53
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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.