Finding the Fourth Proportional to 204,420.80, 306,645.60 and 115,716.80
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Solution
The fourth proportional to 204,420.80, 306,645.60 and 115,716.80 is: 173,583.35
Step by Step Solution
- Step 1: Write the proportion equation
204,420.80 : 306,645.60 = 115,716.80 : x - Step 2: Convert to fraction form
204,420.80/306,645.60 = 115,716.80/x - Step 3: Cross multiply
204,420.80x = 306,645.60 × 115,716.80 - Step 4: Simplify right side
204,420.80x = 35,484,047,566.08 - Step 5: Solve for x
x = 35,484,047,566.08/204,420.80 - Step 6: Final answer
x = 173,583.35
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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.