Finding the Fourth Proportional to 395,457.18, 545,769.87 and 225,716.82
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Solution
The fourth proportional to 395,457.18, 545,769.87 and 225,716.82 is: 311,511.45
Step by Step Solution
- Step 1: Write the proportion equation
395,457.18 : 545,769.87 = 225,716.82 : x - Step 2: Convert to fraction form
395,457.18/545,769.87 = 225,716.82/x - Step 3: Cross multiply
395,457.18x = 545,769.87 × 225,716.82 - Step 4: Simplify right side
395,457.18x = 123,189,439,508.21 - Step 5: Solve for x
x = 123,189,439,508.21/395,457.18 - Step 6: Final answer
x = 311,511.45
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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.