Finding the Fourth Proportional to 207,239.76, 310,859.70 and 57,517.80
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Solution
The fourth proportional to 207,239.76, 310,859.70 and 57,517.80 is: 86,276.72
Step by Step Solution
- Step 1: Write the proportion equation
207,239.76 : 310,859.70 = 57,517.80 : x - Step 2: Convert to fraction form
207,239.76/310,859.70 = 57,517.80/x - Step 3: Cross multiply
207,239.76x = 310,859.70 × 57,517.80 - Step 4: Simplify right side
207,239.76x = 17,879,966,052.66 - Step 5: Solve for x
x = 17,879,966,052.66/207,239.76 - Step 6: Final answer
x = 86,276.72
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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.