Finding the Fourth Proportional to 312,622.92, 431,370.88 and 185,277.96
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Solution
The fourth proportional to 312,622.92, 431,370.88 and 185,277.96 is: 255,654.69
Step by Step Solution
- Step 1: Write the proportion equation
312,622.92 : 431,370.88 = 185,277.96 : x - Step 2: Convert to fraction form
312,622.92/431,370.88 = 185,277.96/x - Step 3: Cross multiply
312,622.92x = 431,370.88 × 185,277.96 - Step 4: Simplify right side
312,622.92x = 79,923,516,649.80 - Step 5: Solve for x
x = 79,923,516,649.80/312,622.92 - Step 6: Final answer
x = 255,654.69
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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.