Finding the Fourth Proportional to 206,371.09, 284,671.45 and 129,768.95
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Solution
The fourth proportional to 206,371.09, 284,671.45 and 129,768.95 is: 179,005.28
Step by Step Solution
- Step 1: Write the proportion equation
206,371.09 : 284,671.45 = 129,768.95 : x - Step 2: Convert to fraction form
206,371.09/284,671.45 = 129,768.95/x - Step 3: Cross multiply
206,371.09x = 284,671.45 × 129,768.95 - Step 4: Simplify right side
206,371.09x = 36,941,514,512.63 - Step 5: Solve for x
x = 36,941,514,512.63/206,371.09 - Step 6: Final answer
x = 179,005.28
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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.