Finding the Fourth Proportional to 285,470.66, 393,920.80 and 158,122.46
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Solution
The fourth proportional to 285,470.66, 393,920.80 and 158,122.46 is: 218,193.09
Step by Step Solution
- Step 1: Write the proportion equation
285,470.66 : 393,920.80 = 158,122.46 : x - Step 2: Convert to fraction form
285,470.66/393,920.80 = 158,122.46/x - Step 3: Cross multiply
285,470.66x = 393,920.80 × 158,122.46 - Step 4: Simplify right side
285,470.66x = 62,287,723,576.26 - Step 5: Solve for x
x = 62,287,723,576.26/285,470.66 - Step 6: Final answer
x = 218,193.09
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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.