Finding the Fourth Proportional to 417,691.81, 626,437.36 and 192,836.21
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Solution
The fourth proportional to 417,691.81, 626,437.36 and 192,836.21 is: 289,207.99
Step by Step Solution
- Step 1: Write the proportion equation
417,691.81 : 626,437.36 = 192,836.21 : x - Step 2: Convert to fraction form
417,691.81/626,437.36 = 192,836.21/x - Step 3: Cross multiply
417,691.81x = 626,437.36 × 192,836.21 - Step 4: Simplify right side
417,691.81x = 120,799,805,340.63 - Step 5: Solve for x
x = 120,799,805,340.63/417,691.81 - Step 6: Final answer
x = 289,207.99
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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.