Finding the Fourth Proportional to 221,928.26, 306,245.61 and 125,135.55
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Solution
The fourth proportional to 221,928.26, 306,245.61 and 125,135.55 is: 172,678.39
Step by Step Solution
- Step 1: Write the proportion equation
221,928.26 : 306,245.61 = 125,135.55 : x - Step 2: Convert to fraction form
221,928.26/306,245.61 = 125,135.55/x - Step 3: Cross multiply
221,928.26x = 306,245.61 × 125,135.55 - Step 4: Simplify right side
221,928.26x = 38,322,212,842.44 - Step 5: Solve for x
x = 38,322,212,842.44/221,928.26 - Step 6: Final answer
x = 172,678.39
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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.