Finding the Fourth Proportional to 151,432.20, 227,148.30 and 121,907.70
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Solution
The fourth proportional to 151,432.20, 227,148.30 and 121,907.70 is: 182,861.55
Step by Step Solution
- Step 1: Write the proportion equation
151,432.20 : 227,148.30 = 121,907.70 : x - Step 2: Convert to fraction form
151,432.20/227,148.30 = 121,907.70/x - Step 3: Cross multiply
151,432.20x = 227,148.30 × 121,907.70 - Step 4: Simplify right side
151,432.20x = 27,691,126,811.91 - Step 5: Solve for x
x = 27,691,126,811.91/151,432.20 - Step 6: Final answer
x = 182,861.55
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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.