Finding the Fourth Proportional to 395,390.12, 545,677.50 and 225,649.76
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Solution
The fourth proportional to 395,390.12, 545,677.50 and 225,649.76 is: 311,419.00
Step by Step Solution
- Step 1: Write the proportion equation
395,390.12 : 545,677.50 = 225,649.76 : x - Step 2: Convert to fraction form
395,390.12/545,677.50 = 225,649.76/x - Step 3: Cross multiply
395,390.12x = 545,677.50 × 225,649.76 - Step 4: Simplify right side
395,390.12x = 123,131,996,912.40 - Step 5: Solve for x
x = 123,131,996,912.40/395,390.12 - Step 6: Final answer
x = 311,419.00
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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.