Finding the Fourth Proportional to 218,114.61, 300,998.63 and 122,622.09
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Solution
The fourth proportional to 218,114.61, 300,998.63 and 122,622.09 is: 169,218.74
Step by Step Solution
- Step 1: Write the proportion equation
218,114.61 : 300,998.63 = 122,622.09 : x - Step 2: Convert to fraction form
218,114.61/300,998.63 = 122,622.09/x - Step 3: Cross multiply
218,114.61x = 300,998.63 × 122,622.09 - Step 4: Simplify right side
218,114.61x = 36,909,078,979.63 - Step 5: Solve for x
x = 36,909,078,979.63/218,114.61 - Step 6: Final answer
x = 169,218.74
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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.