Finding the Fourth Proportional to 129,247.40, 193,433.70 and 129,247.40
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Solution
The fourth proportional to 129,247.40, 193,433.70 and 129,247.40 is: 193,433.70
Step by Step Solution
- Step 1: Write the proportion equation
129,247.40 : 193,433.70 = 129,247.40 : x - Step 2: Convert to fraction form
129,247.40/193,433.70 = 129,247.40/x - Step 3: Cross multiply
129,247.40x = 193,433.70 × 129,247.40 - Step 4: Simplify right side
129,247.40x = 25,000,802,797.38 - Step 5: Solve for x
x = 25,000,802,797.38/129,247.40 - Step 6: Final answer
x = 193,433.70
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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.