Finding the Fourth Proportional to 306,226.08, 422,512.20 and 178,829.28
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Solution
The fourth proportional to 306,226.08, 422,512.20 and 178,829.28 is: 246,737.81
Step by Step Solution
- Step 1: Write the proportion equation
306,226.08 : 422,512.20 = 178,829.28 : x - Step 2: Convert to fraction form
306,226.08/422,512.20 = 178,829.28/x - Step 3: Cross multiply
306,226.08x = 422,512.20 × 178,829.28 - Step 4: Simplify right side
306,226.08x = 75,557,552,517.22 - Step 5: Solve for x
x = 75,557,552,517.22/306,226.08 - Step 6: Final answer
x = 246,737.81
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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.