Finding the Fourth Proportional to 222,451.24, 306,986.70 and 121,842.76
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Solution
The fourth proportional to 222,451.24, 306,986.70 and 121,842.76 is: 168,145.19
Step by Step Solution
- Step 1: Write the proportion equation
222,451.24 : 306,986.70 = 121,842.76 : x - Step 2: Convert to fraction form
222,451.24/306,986.70 = 121,842.76/x - Step 3: Cross multiply
222,451.24x = 306,986.70 × 121,842.76 - Step 4: Simplify right side
222,451.24x = 37,404,106,811.29 - Step 5: Solve for x
x = 37,404,106,811.29/222,451.24 - Step 6: Final answer
x = 168,145.19
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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.