Finding the Fourth Proportional to 207,728.14, 286,901.29 and 139,626.88
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Solution
The fourth proportional to 207,728.14, 286,901.29 and 139,626.88 is: 192,844.03
Step by Step Solution
- Step 1: Write the proportion equation
207,728.14 : 286,901.29 = 139,626.88 : x - Step 2: Convert to fraction form
207,728.14/286,901.29 = 139,626.88/x - Step 3: Cross multiply
207,728.14x = 286,901.29 × 139,626.88 - Step 4: Simplify right side
207,728.14x = 40,059,131,990.68 - Step 5: Solve for x
x = 40,059,131,990.68/207,728.14 - Step 6: Final answer
x = 192,844.03
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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.