Finding the Fourth Proportional to 326,063.20, 489,119.10 and 115,673.80
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Solution
The fourth proportional to 326,063.20, 489,119.10 and 115,673.80 is: 173,519.32
Step by Step Solution
- Step 1: Write the proportion equation
326,063.20 : 489,119.10 = 115,673.80 : x - Step 2: Convert to fraction form
326,063.20/489,119.10 = 115,673.80/x - Step 3: Cross multiply
326,063.20x = 489,119.10 × 115,673.80 - Step 4: Simplify right side
326,063.20x = 56,578,264,949.58 - Step 5: Solve for x
x = 56,578,264,949.58/326,063.20 - Step 6: Final answer
x = 173,519.32
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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.