Finding the Fourth Proportional to 262,541.70, 393,553.35 and 129,312.90
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Solution
The fourth proportional to 262,541.70, 393,553.35 and 129,312.90 is: 193,841.68
Step by Step Solution
- Step 1: Write the proportion equation
262,541.70 : 393,553.35 = 129,312.90 : x - Step 2: Convert to fraction form
262,541.70/393,553.35 = 129,312.90/x - Step 3: Cross multiply
262,541.70x = 393,553.35 × 129,312.90 - Step 4: Simplify right side
262,541.70x = 50,891,524,993.22 - Step 5: Solve for x
x = 50,891,524,993.22/262,541.70 - Step 6: Final answer
x = 193,841.68
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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.