Finding the Fourth Proportional to 481,980.87, 665,163.18 and 278,028.18
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Solution
The fourth proportional to 481,980.87, 665,163.18 and 278,028.18 is: 383,695.95
Step by Step Solution
- Step 1: Write the proportion equation
481,980.87 : 665,163.18 = 278,028.18 : x - Step 2: Convert to fraction form
481,980.87/665,163.18 = 278,028.18/x - Step 3: Cross multiply
481,980.87x = 665,163.18 × 278,028.18 - Step 4: Simplify right side
481,980.87x = 184,934,108,338.41 - Step 5: Solve for x
x = 184,934,108,338.41/481,980.87 - Step 6: Final answer
x = 383,695.95
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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.