Finding the Fourth Proportional to 222,306.72, 306,783.36 and 121,704.72
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Solution
The fourth proportional to 222,306.72, 306,783.36 and 121,704.72 is: 167,952.56
Step by Step Solution
- Step 1: Write the proportion equation
222,306.72 : 306,783.36 = 121,704.72 : x - Step 2: Convert to fraction form
222,306.72/306,783.36 = 121,704.72/x - Step 3: Cross multiply
222,306.72x = 306,783.36 × 121,704.72 - Step 4: Simplify right side
222,306.72x = 37,336,982,929.46 - Step 5: Solve for x
x = 37,336,982,929.46/222,306.72 - Step 6: Final answer
x = 167,952.56
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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.