Finding the Fourth Proportional to 203,920.92, 305,881.38 and 79,291.08
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Solution
The fourth proportional to 203,920.92, 305,881.38 and 79,291.08 is: 118,936.62
Step by Step Solution
- Step 1: Write the proportion equation
203,920.92 : 305,881.38 = 79,291.08 : x - Step 2: Convert to fraction form
203,920.92/305,881.38 = 79,291.08/x - Step 3: Cross multiply
203,920.92x = 305,881.38 × 79,291.08 - Step 4: Simplify right side
203,920.92x = 24,253,664,972.09 - Step 5: Solve for x
x = 24,253,664,972.09/203,920.92 - Step 6: Final answer
x = 118,936.62
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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.