Finding the Fourth Proportional to 326,499.62, 489,938.50 and 136,943.12
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Solution
The fourth proportional to 326,499.62, 489,938.50 and 136,943.12 is: 205,493.98
Step by Step Solution
- Step 1: Write the proportion equation
326,499.62 : 489,938.50 = 136,943.12 : x - Step 2: Convert to fraction form
326,499.62/489,938.50 = 136,943.12/x - Step 3: Cross multiply
326,499.62x = 489,938.50 × 136,943.12 - Step 4: Simplify right side
326,499.62x = 67,093,706,798.12 - Step 5: Solve for x
x = 67,093,706,798.12/326,499.62 - Step 6: Final answer
x = 205,493.98
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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.