Finding the Fourth Proportional to 206,246.25, 284,631.03 and 115,631.28
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Solution
The fourth proportional to 206,246.25, 284,631.03 and 115,631.28 is: 159,577.45
Step by Step Solution
- Step 1: Write the proportion equation
206,246.25 : 284,631.03 = 115,631.28 : x - Step 2: Convert to fraction form
206,246.25/284,631.03 = 115,631.28/x - Step 3: Cross multiply
206,246.25x = 284,631.03 × 115,631.28 - Step 4: Simplify right side
206,246.25x = 32,912,250,326.62 - Step 5: Solve for x
x = 32,912,250,326.62/206,246.25 - Step 6: Final answer
x = 159,577.45
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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.