Finding the Fourth Proportional to 189,813.40, 284,201.70 and 136,936.60
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Solution
The fourth proportional to 189,813.40, 284,201.70 and 136,936.60 is: 205,030.91
Step by Step Solution
- Step 1: Write the proportion equation
189,813.40 : 284,201.70 = 136,936.60 : x - Step 2: Convert to fraction form
189,813.40/284,201.70 = 136,936.60/x - Step 3: Cross multiply
189,813.40x = 284,201.70 × 136,936.60 - Step 4: Simplify right side
189,813.40x = 38,917,614,512.22 - Step 5: Solve for x
x = 38,917,614,512.22/189,813.40 - Step 6: Final answer
x = 205,030.91
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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.