Finding the Fourth Proportional to 318,352.95, 477,546.45 and 81,697.68
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Solution
The fourth proportional to 318,352.95, 477,546.45 and 81,697.68 is: 122,550.89
Step by Step Solution
- Step 1: Write the proportion equation
318,352.95 : 477,546.45 = 81,697.68 : x - Step 2: Convert to fraction form
318,352.95/477,546.45 = 81,697.68/x - Step 3: Cross multiply
318,352.95x = 477,546.45 × 81,697.68 - Step 4: Simplify right side
318,352.95x = 39,014,437,057.24 - Step 5: Solve for x
x = 39,014,437,057.24/318,352.95 - Step 6: Final answer
x = 122,550.89
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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.