Finding the Fourth Proportional to 311,922.22, 430,432.60 and 177,777.58
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Solution
The fourth proportional to 311,922.22, 430,432.60 and 177,777.58 is: 245,321.63
Step by Step Solution
- Step 1: Write the proportion equation
311,922.22 : 430,432.60 = 177,777.58 : x - Step 2: Convert to fraction form
311,922.22/430,432.60 = 177,777.58/x - Step 3: Cross multiply
311,922.22x = 430,432.60 × 177,777.58 - Step 4: Simplify right side
311,922.22x = 76,521,265,981.11 - Step 5: Solve for x
x = 76,521,265,981.11/311,922.22 - Step 6: Final answer
x = 245,321.63
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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.