Finding the Fourth Proportional to 326,500.49, 489,939.82 and 136,943.99
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Solution
The fourth proportional to 326,500.49, 489,939.82 and 136,943.99 is: 205,495.29
Step by Step Solution
- Step 1: Write the proportion equation
326,500.49 : 489,939.82 = 136,943.99 : x - Step 2: Convert to fraction form
326,500.49/489,939.82 = 136,943.99/x - Step 3: Cross multiply
326,500.49x = 489,939.82 × 136,943.99 - Step 4: Simplify right side
326,500.49x = 67,094,313,810.68 - Step 5: Solve for x
x = 67,094,313,810.68/326,500.49 - Step 6: Final answer
x = 205,495.29
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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.