Finding the Fourth Proportional to 252,445.76, 378,668.52 and 74,952.68
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Solution
The fourth proportional to 252,445.76, 378,668.52 and 74,952.68 is: 112,428.98
Step by Step Solution
- Step 1: Write the proportion equation
252,445.76 : 378,668.52 = 74,952.68 : x - Step 2: Convert to fraction form
252,445.76/378,668.52 = 74,952.68/x - Step 3: Cross multiply
252,445.76x = 378,668.52 × 74,952.68 - Step 4: Simplify right side
252,445.76x = 28,382,220,405.63 - Step 5: Solve for x
x = 28,382,220,405.63/252,445.76 - Step 6: Final answer
x = 112,428.98
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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.