Finding the Fourth Proportional to 226,245.69, 312,273.43 and 129,505.63
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Solution
The fourth proportional to 226,245.69, 312,273.43 and 129,505.63 is: 178,748.89
Step by Step Solution
- Step 1: Write the proportion equation
226,245.69 : 312,273.43 = 129,505.63 : x - Step 2: Convert to fraction form
226,245.69/312,273.43 = 129,505.63/x - Step 3: Cross multiply
226,245.69x = 312,273.43 × 129,505.63 - Step 4: Simplify right side
226,245.69x = 40,441,165,723.04 - Step 5: Solve for x
x = 40,441,165,723.04/226,245.69 - Step 6: Final answer
x = 178,748.89
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1.5x scale
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.