Finding the Fourth Proportional to 201,668.40, 278,551.80 and 147,868.20
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Solution
The fourth proportional to 201,668.40, 278,551.80 and 147,868.20 is: 204,240.99
Step by Step Solution
- Step 1: Write the proportion equation
201,668.40 : 278,551.80 = 147,868.20 : x - Step 2: Convert to fraction form
201,668.40/278,551.80 = 147,868.20/x - Step 3: Cross multiply
201,668.40x = 278,551.80 × 147,868.20 - Step 4: Simplify right side
201,668.40x = 41,188,953,272.76 - Step 5: Solve for x
x = 41,188,953,272.76/201,668.40 - Step 6: Final answer
x = 204,240.99
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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.