Finding the Fourth Proportional to 386,649.38, 579,198.02 and 197,102.09
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Solution
The fourth proportional to 386,649.38, 579,198.02 and 197,102.09 is: 295,257.52
Step by Step Solution
- Step 1: Write the proportion equation
386,649.38 : 579,198.02 = 197,102.09 : x - Step 2: Convert to fraction form
386,649.38/579,198.02 = 197,102.09/x - Step 3: Cross multiply
386,649.38x = 579,198.02 × 197,102.09 - Step 4: Simplify right side
386,649.38x = 114,161,136,384.36 - Step 5: Solve for x
x = 114,161,136,384.36/386,649.38 - Step 6: Final answer
x = 295,257.52
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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.