Finding the Fourth Proportional to 221,946.75, 306,287.60 and 121,344.75
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Solution
The fourth proportional to 221,946.75, 306,287.60 and 121,344.75 is: 167,456.35
Step by Step Solution
- Step 1: Write the proportion equation
221,946.75 : 306,287.60 = 121,344.75 : x - Step 2: Convert to fraction form
221,946.75/306,287.60 = 121,344.75/x - Step 3: Cross multiply
221,946.75x = 306,287.60 × 121,344.75 - Step 4: Simplify right side
221,946.75x = 37,166,391,643.38 - Step 5: Solve for x
x = 37,166,391,643.38/221,946.75 - Step 6: Final answer
x = 167,456.35
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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.