Finding the Fourth Proportional to 221,946.32, 306,286.44 and 121,350.80
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Solution
The fourth proportional to 221,946.32, 306,286.44 and 121,350.80 is: 167,464.39
Step by Step Solution
- Step 1: Write the proportion equation
221,946.32 : 306,286.44 = 121,350.80 : x - Step 2: Convert to fraction form
221,946.32/306,286.44 = 121,350.80/x - Step 3: Cross multiply
221,946.32x = 306,286.44 × 121,350.80 - Step 4: Simplify right side
221,946.32x = 37,168,104,523.15 - Step 5: Solve for x
x = 37,168,104,523.15/221,946.32 - Step 6: Final answer
x = 167,464.39
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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.