Finding the Fourth Proportional to 382,212.20, 573,318.30 and 115,959.80
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Solution
The fourth proportional to 382,212.20, 573,318.30 and 115,959.80 is: 173,939.70
Step by Step Solution
- Step 1: Write the proportion equation
382,212.20 : 573,318.30 = 115,959.80 : x - Step 2: Convert to fraction form
382,212.20/573,318.30 = 115,959.80/x - Step 3: Cross multiply
382,212.20x = 573,318.30 × 115,959.80 - Step 4: Simplify right side
382,212.20x = 66,481,875,404.34 - Step 5: Solve for x
x = 66,481,875,404.34/382,212.20 - Step 6: Final answer
x = 173,939.70
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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.