Finding the Fourth Proportional to 207,198.72, 310,542.36 and 107,301.42
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Solution
The fourth proportional to 207,198.72, 310,542.36 and 107,301.42 is: 160,819.70
Step by Step Solution
- Step 1: Write the proportion equation
207,198.72 : 310,542.36 = 107,301.42 : x - Step 2: Convert to fraction form
207,198.72/310,542.36 = 107,301.42/x - Step 3: Cross multiply
207,198.72x = 310,542.36 × 107,301.42 - Step 4: Simplify right side
207,198.72x = 33,321,636,198.15 - Step 5: Solve for x
x = 33,321,636,198.15/207,198.72 - Step 6: Final answer
x = 160,819.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.