Finding the Fourth Proportional to 326,202.20, 489,327.60 and 115,812.80
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Solution
The fourth proportional to 326,202.20, 489,327.60 and 115,812.80 is: 173,727.83
Step by Step Solution
- Step 1: Write the proportion equation
326,202.20 : 489,327.60 = 115,812.80 : x - Step 2: Convert to fraction form
326,202.20/489,327.60 = 115,812.80/x - Step 3: Cross multiply
326,202.20x = 489,327.60 × 115,812.80 - Step 4: Simplify right side
326,202.20x = 56,670,399,473.28 - Step 5: Solve for x
x = 56,670,399,473.28/326,202.20 - Step 6: Final answer
x = 173,727.83
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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.