Finding the Fourth Proportional to 208,812.13, 288,160.94 and 113,318.84
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Solution
The fourth proportional to 208,812.13, 288,160.94 and 113,318.84 is: 156,380.11
Step by Step Solution
- Step 1: Write the proportion equation
208,812.13 : 288,160.94 = 113,318.84 : x - Step 2: Convert to fraction form
208,812.13/288,160.94 = 113,318.84/x - Step 3: Cross multiply
208,812.13x = 288,160.94 × 113,318.84 - Step 4: Simplify right side
208,812.13x = 32,654,062,887.52 - Step 5: Solve for x
x = 32,654,062,887.52/208,812.13 - Step 6: Final answer
x = 156,380.11
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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.