Finding the Fourth Proportional to 201,761.87, 278,425.68 and 115,735.21
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Solution
The fourth proportional to 201,761.87, 278,425.68 and 115,735.21 is: 159,711.31
Step by Step Solution
- Step 1: Write the proportion equation
201,761.87 : 278,425.68 = 115,735.21 : x - Step 2: Convert to fraction form
201,761.87/278,425.68 = 115,735.21/x - Step 3: Cross multiply
201,761.87x = 278,425.68 × 115,735.21 - Step 4: Simplify right side
201,761.87x = 32,223,653,152.06 - Step 5: Solve for x
x = 32,223,653,152.06/201,761.87 - Step 6: Final answer
x = 159,711.31
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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.