Finding the Fourth Proportional to 223,161.68, 307,965.30 and 122,559.68
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Solution
The fourth proportional to 223,161.68, 307,965.30 and 122,559.68 is: 169,133.56
Step by Step Solution
- Step 1: Write the proportion equation
223,161.68 : 307,965.30 = 122,559.68 : x - Step 2: Convert to fraction form
223,161.68/307,965.30 = 122,559.68/x - Step 3: Cross multiply
223,161.68x = 307,965.30 × 122,559.68 - Step 4: Simplify right side
223,161.68x = 37,744,128,619.10 - Step 5: Solve for x
x = 37,744,128,619.10/223,161.68 - Step 6: Final answer
x = 169,133.56
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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.