Finding the Fourth Proportional to 395,366.40, 593,107.20 and 129,139.20
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Solution
The fourth proportional to 395,366.40, 593,107.20 and 129,139.20 is: 193,727.61
Step by Step Solution
- Step 1: Write the proportion equation
395,366.40 : 593,107.20 = 129,139.20 : x - Step 2: Convert to fraction form
395,366.40/593,107.20 = 129,139.20/x - Step 3: Cross multiply
395,366.40x = 593,107.20 × 129,139.20 - Step 4: Simplify right side
395,366.40x = 76,593,389,322.24 - Step 5: Solve for x
x = 76,593,389,322.24/395,366.40 - Step 6: Final answer
x = 193,727.61
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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.