Finding the Fourth Proportional to 223,687.23, 308,679.12 and 121,713.09
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Solution
The fourth proportional to 223,687.23, 308,679.12 and 121,713.09 is: 167,959.03
Step by Step Solution
- Step 1: Write the proportion equation
223,687.23 : 308,679.12 = 121,713.09 : x - Step 2: Convert to fraction form
223,687.23/308,679.12 = 121,713.09/x - Step 3: Cross multiply
223,687.23x = 308,679.12 × 121,713.09 - Step 4: Simplify right side
223,687.23x = 37,570,289,513.68 - Step 5: Solve for x
x = 37,570,289,513.68/223,687.23 - Step 6: Final answer
x = 167,959.03
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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.