Finding the Fourth Proportional to 313,575.30, 432,723.94 and 177,621.80
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Solution
The fourth proportional to 313,575.30, 432,723.94 and 177,621.80 is: 245,112.43
Step by Step Solution
- Step 1: Write the proportion equation
313,575.30 : 432,723.94 = 177,621.80 : x - Step 2: Convert to fraction form
313,575.30/432,723.94 = 177,621.80/x - Step 3: Cross multiply
313,575.30x = 432,723.94 × 177,621.80 - Step 4: Simplify right side
313,575.30x = 76,861,202,518.22 - Step 5: Solve for x
x = 76,861,202,518.22/313,575.30 - Step 6: Final answer
x = 245,112.43
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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.