Finding the Fourth Proportional to 207,078.40, 310,617.60 and 88,761.70
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Solution
The fourth proportional to 207,078.40, 310,617.60 and 88,761.70 is: 133,142.55
Step by Step Solution
- Step 1: Write the proportion equation
207,078.40 : 310,617.60 = 88,761.70 : x - Step 2: Convert to fraction form
207,078.40/310,617.60 = 88,761.70/x - Step 3: Cross multiply
207,078.40x = 310,617.60 × 88,761.70 - Step 4: Simplify right side
207,078.40x = 27,570,946,225.92 - Step 5: Solve for x
x = 27,570,946,225.92/207,078.40 - Step 6: Final answer
x = 133,142.55
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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.