Finding the Fourth Proportional to 206,341.92, 284,630.94 and 129,739.63
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Solution
The fourth proportional to 206,341.92, 284,630.94 and 129,739.63 is: 178,964.67
Step by Step Solution
- Step 1: Write the proportion equation
206,341.92 : 284,630.94 = 129,739.63 : x - Step 2: Convert to fraction form
206,341.92/284,630.94 = 129,739.63/x - Step 3: Cross multiply
206,341.92x = 284,630.94 × 129,739.63 - Step 4: Simplify right side
206,341.92x = 36,927,912,842.15 - Step 5: Solve for x
x = 36,927,912,842.15/206,341.92 - Step 6: Final answer
x = 178,964.67
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1.5x scale
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.