Finding the Fourth Proportional to 393,348.80, 590,007.84 and 112,865.96
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Solution
The fourth proportional to 393,348.80, 590,007.84 and 112,865.96 is: 169,294.53
Step by Step Solution
- Step 1: Write the proportion equation
393,348.80 : 590,007.84 = 112,865.96 : x - Step 2: Convert to fraction form
393,348.80/590,007.84 = 112,865.96/x - Step 3: Cross multiply
393,348.80x = 590,007.84 × 112,865.96 - Step 4: Simplify right side
393,348.80x = 66,591,801,269.13 - Step 5: Solve for x
x = 66,591,801,269.13/393,348.80 - Step 6: Final answer
x = 169,294.53
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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.