Finding the Fourth Proportional to 445,922.54, 668,985.99 and 193,245.45
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Solution
The fourth proportional to 445,922.54, 668,985.99 and 193,245.45 is: 289,912.45
Step by Step Solution
- Step 1: Write the proportion equation
445,922.54 : 668,985.99 = 193,245.45 : x - Step 2: Convert to fraction form
445,922.54/668,985.99 = 193,245.45/x - Step 3: Cross multiply
445,922.54x = 668,985.99 × 193,245.45 - Step 4: Simplify right side
445,922.54x = 129,278,495,447.88 - Step 5: Solve for x
x = 129,278,495,447.88/445,922.54 - Step 6: Final answer
x = 289,912.45
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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.