Finding the Fourth Proportional to 218,137.13, 327,380.69 and 112,986.17
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Solution
The fourth proportional to 218,137.13, 327,380.69 and 112,986.17 is: 169,569.90
Step by Step Solution
- Step 1: Write the proportion equation
218,137.13 : 327,380.69 = 112,986.17 : x - Step 2: Convert to fraction form
218,137.13/327,380.69 = 112,986.17/x - Step 3: Cross multiply
218,137.13x = 327,380.69 × 112,986.17 - Step 4: Simplify right side
218,137.13x = 36,989,490,295.06 - Step 5: Solve for x
x = 36,989,490,295.06/218,137.13 - Step 6: Final answer
x = 169,569.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.