Finding the Fourth Proportional to 181,818.60, 272,630.70 and 76,518.60
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Solution
The fourth proportional to 181,818.60, 272,630.70 and 76,518.60 is: 114,736.99
Step by Step Solution
- Step 1: Write the proportion equation
181,818.60 : 272,630.70 = 76,518.60 : x - Step 2: Convert to fraction form
181,818.60/272,630.70 = 76,518.60/x - Step 3: Cross multiply
181,818.60x = 272,630.70 × 76,518.60 - Step 4: Simplify right side
181,818.60x = 20,861,319,481.02 - Step 5: Solve for x
x = 20,861,319,481.02/181,818.60 - Step 6: Final answer
x = 114,736.99
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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.