Finding the Fourth Proportional to 223,218.23, 308,043.42 and 121,244.68
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Solution
The fourth proportional to 223,218.23, 308,043.42 and 121,244.68 is: 167,318.88
Step by Step Solution
- Step 1: Write the proportion equation
223,218.23 : 308,043.42 = 121,244.68 : x - Step 2: Convert to fraction form
223,218.23/308,043.42 = 121,244.68/x - Step 3: Cross multiply
223,218.23x = 308,043.42 × 121,244.68 - Step 4: Simplify right side
223,218.23x = 37,348,624,343.79 - Step 5: Solve for x
x = 37,348,624,343.79/223,218.23 - Step 6: Final answer
x = 167,318.88
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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.