Finding the Fourth Proportional to 311,933.40, 467,900.15 and 75,276.09
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Solution
The fourth proportional to 311,933.40, 467,900.15 and 75,276.09 is: 112,914.15
Step by Step Solution
- Step 1: Write the proportion equation
311,933.40 : 467,900.15 = 75,276.09 : x - Step 2: Convert to fraction form
311,933.40/467,900.15 = 75,276.09/x - Step 3: Cross multiply
311,933.40x = 467,900.15 × 75,276.09 - Step 4: Simplify right side
311,933.40x = 35,221,693,426.03 - Step 5: Solve for x
x = 35,221,693,426.03/311,933.40 - Step 6: Final answer
x = 112,914.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.