Finding the Fourth Proportional to 331,638.24, 457,604.74 and 186,424.70
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Solution
The fourth proportional to 331,638.24, 457,604.74 and 186,424.70 is: 257,234.59
Step by Step Solution
- Step 1: Write the proportion equation
331,638.24 : 457,604.74 = 186,424.70 : x - Step 2: Convert to fraction form
331,638.24/457,604.74 = 186,424.70/x - Step 3: Cross multiply
331,638.24x = 457,604.74 × 186,424.70 - Step 4: Simplify right side
331,638.24x = 85,308,826,373.08 - Step 5: Solve for x
x = 85,308,826,373.08/331,638.24 - Step 6: Final answer
x = 257,234.59
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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.