Finding the Fourth Proportional to 207,239.40, 310,859.10 and 132,589.80
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Solution
The fourth proportional to 207,239.40, 310,859.10 and 132,589.80 is: 198,884.70
Step by Step Solution
- Step 1: Write the proportion equation
207,239.40 : 310,859.10 = 132,589.80 : x - Step 2: Convert to fraction form
207,239.40/310,859.10 = 132,589.80/x - Step 3: Cross multiply
207,239.40x = 310,859.10 × 132,589.80 - Step 4: Simplify right side
207,239.40x = 41,216,745,897.18 - Step 5: Solve for x
x = 41,216,745,897.18/207,239.40 - Step 6: Final answer
x = 198,884.70
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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.