Finding the Fourth Proportional to 285,470.64, 393,920.82 and 158,122.44
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Solution
The fourth proportional to 285,470.64, 393,920.82 and 158,122.44 is: 218,193.09
Step by Step Solution
- Step 1: Write the proportion equation
285,470.64 : 393,920.82 = 158,122.44 : x - Step 2: Convert to fraction form
285,470.64/393,920.82 = 158,122.44/x - Step 3: Cross multiply
285,470.64x = 393,920.82 × 158,122.44 - Step 4: Simplify right side
285,470.64x = 62,287,721,225.20 - Step 5: Solve for x
x = 62,287,721,225.20/285,470.64 - 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.