Finding the Fourth Proportional to 201,821.75, 278,514.09 and 116,988.02
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Solution
The fourth proportional to 201,821.75, 278,514.09 and 116,988.02 is: 161,443.51
Step by Step Solution
- Step 1: Write the proportion equation
201,821.75 : 278,514.09 = 116,988.02 : x - Step 2: Convert to fraction form
201,821.75/278,514.09 = 116,988.02/x - Step 3: Cross multiply
201,821.75x = 278,514.09 × 116,988.02 - Step 4: Simplify right side
201,821.75x = 32,582,811,931.20 - Step 5: Solve for x
x = 32,582,811,931.20/201,821.75 - Step 6: Final answer
x = 161,443.51
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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.