Finding the Fourth Proportional to 656,329.20, 984,633.12 and 207,179.88
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Solution
The fourth proportional to 656,329.20, 984,633.12 and 207,179.88 is: 310,813.80
Step by Step Solution
- Step 1: Write the proportion equation
656,329.20 : 984,633.12 = 207,179.88 : x - Step 2: Convert to fraction form
656,329.20/984,633.12 = 207,179.88/x - Step 3: Cross multiply
656,329.20x = 984,633.12 × 207,179.88 - Step 4: Simplify right side
656,329.20x = 203,996,171,645.63 - Step 5: Solve for x
x = 203,996,171,645.63/656,329.20 - Step 6: Final answer
x = 310,813.80
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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.