Finding the Fourth Proportional to 207,775.70, 286,755.72 and 117,149.12
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Solution
The fourth proportional to 207,775.70, 286,755.72 and 117,149.12 is: 161,680.02
Step by Step Solution
- Step 1: Write the proportion equation
207,775.70 : 286,755.72 = 117,149.12 : x - Step 2: Convert to fraction form
207,775.70/286,755.72 = 117,149.12/x - Step 3: Cross multiply
207,775.70x = 286,755.72 × 117,149.12 - Step 4: Simplify right side
207,775.70x = 33,593,180,252.97 - Step 5: Solve for x
x = 33,593,180,252.97/207,775.70 - Step 6: Final answer
x = 161,680.02
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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.