Finding the Fourth Proportional to 145,721.14, 218,582.12 and 40,540.21
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Solution
The fourth proportional to 145,721.14, 218,582.12 and 40,540.21 is: 60,810.43
Step by Step Solution
- Step 1: Write the proportion equation
145,721.14 : 218,582.12 = 40,540.21 : x - Step 2: Convert to fraction form
145,721.14/218,582.12 = 40,540.21/x - Step 3: Cross multiply
145,721.14x = 218,582.12 × 40,540.21 - Step 4: Simplify right side
145,721.14x = 8,861,365,047.05 - Step 5: Solve for x
x = 8,861,365,047.05/145,721.14 - Step 6: Final answer
x = 60,810.43
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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.