Finding the Fourth Proportional to 326,110.77, 489,168.75 and 133,935.68
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Solution
The fourth proportional to 326,110.77, 489,168.75 and 133,935.68 is: 200,904.59
Step by Step Solution
- Step 1: Write the proportion equation
326,110.77 : 489,168.75 = 133,935.68 : x - Step 2: Convert to fraction form
326,110.77/489,168.75 = 133,935.68/x - Step 3: Cross multiply
326,110.77x = 489,168.75 × 133,935.68 - Step 4: Simplify right side
326,110.77x = 65,517,149,166 - Step 5: Solve for x
x = 65,517,149,166/326,110.77 - Step 6: Final answer
x = 200,904.59
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1.5x scale
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.