Finding the Fourth Proportional to 235,109.75, 352,617.45 and 115,115.00
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Solution
The fourth proportional to 235,109.75, 352,617.45 and 115,115.00 is: 172,649.40
Step by Step Solution
- Step 1: Write the proportion equation
235,109.75 : 352,617.45 = 115,115.00 : x - Step 2: Convert to fraction form
235,109.75/352,617.45 = 115,115.00/x - Step 3: Cross multiply
235,109.75x = 352,617.45 × 115,115.00 - Step 4: Simplify right side
235,109.75x = 40,591,555,993.66 - Step 5: Solve for x
x = 40,591,555,993.66/235,109.75 - Step 6: Final answer
x = 172,649.40
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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.