Finding the Fourth Proportional to 201,651.57, 278,373.65 and 116,752.23
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Solution
The fourth proportional to 201,651.57, 278,373.65 and 116,752.23 is: 161,172.78
Step by Step Solution
- Step 1: Write the proportion equation
201,651.57 : 278,373.65 = 116,752.23 : x - Step 2: Convert to fraction form
201,651.57/278,373.65 = 116,752.23/x - Step 3: Cross multiply
201,651.57x = 278,373.65 × 116,752.23 - Step 4: Simplify right side
201,651.57x = 32,500,743,826.98 - Step 5: Solve for x
x = 32,500,743,826.98/201,651.57 - Step 6: Final answer
x = 161,172.78
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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.