Finding the Fourth Proportional to 268,749.87, 370,866.96 and 147,891.09
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Solution
The fourth proportional to 268,749.87, 370,866.96 and 147,891.09 is: 204,085.38
Step by Step Solution
- Step 1: Write the proportion equation
268,749.87 : 370,866.96 = 147,891.09 : x - Step 2: Convert to fraction form
268,749.87/370,866.96 = 147,891.09/x - Step 3: Cross multiply
268,749.87x = 370,866.96 × 147,891.09 - Step 4: Simplify right side
268,749.87x = 54,847,918,123.23 - Step 5: Solve for x
x = 54,847,918,123.23/268,749.87 - Step 6: Final answer
x = 204,085.38
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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.