Finding the Fourth Proportional to 331,639.24, 457,606.12 and 186,425.70
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Solution
The fourth proportional to 331,639.24, 457,606.12 and 186,425.70 is: 257,235.97
Step by Step Solution
- Step 1: Write the proportion equation
331,639.24 : 457,606.12 = 186,425.70 : x - Step 2: Convert to fraction form
331,639.24/457,606.12 = 186,425.70/x - Step 3: Cross multiply
331,639.24x = 457,606.12 × 186,425.70 - Step 4: Simplify right side
331,639.24x = 85,309,541,245.28 - Step 5: Solve for x
x = 85,309,541,245.28/331,639.24 - Step 6: Final answer
x = 257,235.97
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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.