Finding the Fourth Proportional to 223,015.68, 307,763.96 and 121,042.08
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Solution
The fourth proportional to 223,015.68, 307,763.96 and 121,042.08 is: 167,039.33
Step by Step Solution
- Step 1: Write the proportion equation
223,015.68 : 307,763.96 = 121,042.08 : x - Step 2: Convert to fraction form
223,015.68/307,763.96 = 121,042.08/x - Step 3: Cross multiply
223,015.68x = 307,763.96 × 121,042.08 - Step 4: Simplify right side
223,015.68x = 37,252,389,262.23 - Step 5: Solve for x
x = 37,252,389,262.23/223,015.68 - Step 6: Final answer
x = 167,039.33
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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.