Finding the Fourth Proportional to 306,344.09, 422,722.44 and 170,356.05
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Solution
The fourth proportional to 306,344.09, 422,722.44 and 170,356.05 is: 235,073.33
Step by Step Solution
- Step 1: Write the proportion equation
306,344.09 : 422,722.44 = 170,356.05 : x - Step 2: Convert to fraction form
306,344.09/422,722.44 = 170,356.05/x - Step 3: Cross multiply
306,344.09x = 422,722.44 × 170,356.05 - Step 4: Simplify right side
306,344.09x = 72,013,325,124.76 - Step 5: Solve for x
x = 72,013,325,124.76/306,344.09 - Step 6: Final answer
x = 235,073.33
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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.