Finding the Fourth Proportional to 203,638.38, 305,334.81 and 91,298.28
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Solution
The fourth proportional to 203,638.38, 305,334.81 and 91,298.28 is: 136,892.38
Step by Step Solution
- Step 1: Write the proportion equation
203,638.38 : 305,334.81 = 91,298.28 : x - Step 2: Convert to fraction form
203,638.38/305,334.81 = 91,298.28/x - Step 3: Cross multiply
203,638.38x = 305,334.81 × 91,298.28 - Step 4: Simplify right side
203,638.38x = 27,876,542,977.13 - Step 5: Solve for x
x = 27,876,542,977.13/203,638.38 - Step 6: Final answer
x = 136,892.38
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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.