Finding the Fourth Proportional to 207,192.71, 285,965.17 and 129,704.42
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Solution
The fourth proportional to 207,192.71, 285,965.17 and 129,704.42 is: 179,016.66
Step by Step Solution
- Step 1: Write the proportion equation
207,192.71 : 285,965.17 = 129,704.42 : x - Step 2: Convert to fraction form
207,192.71/285,965.17 = 129,704.42/x - Step 3: Cross multiply
207,192.71x = 285,965.17 × 129,704.42 - Step 4: Simplify right side
207,192.71x = 37,090,946,849.68 - Step 5: Solve for x
x = 37,090,946,849.68/207,192.71 - Step 6: Final answer
x = 179,016.66
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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.