Finding the Fourth Proportional to 209,115.06, 288,574.63 and 113,622.44
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Solution
The fourth proportional to 209,115.06, 288,574.63 and 113,622.44 is: 156,796.71
Step by Step Solution
- Step 1: Write the proportion equation
209,115.06 : 288,574.63 = 113,622.44 : x - Step 2: Convert to fraction form
209,115.06/288,574.63 = 113,622.44/x - Step 3: Cross multiply
209,115.06x = 288,574.63 × 113,622.44 - Step 4: Simplify right side
209,115.06x = 32,788,554,020.08 - Step 5: Solve for x
x = 32,788,554,020.08/209,115.06 - Step 6: Final answer
x = 156,796.71
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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.