Finding the Fourth Proportional to 199,405.11, 275,168.09 and 113,352.13
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Solution
The fourth proportional to 199,405.11, 275,168.09 and 113,352.13 is: 156,419.70
Step by Step Solution
- Step 1: Write the proportion equation
199,405.11 : 275,168.09 = 113,352.13 : x - Step 2: Convert to fraction form
199,405.11/275,168.09 = 113,352.13/x - Step 3: Cross multiply
199,405.11x = 275,168.09 × 113,352.13 - Step 4: Simplify right side
199,405.11x = 31,190,887,166.93 - Step 5: Solve for x
x = 31,190,887,166.93/199,405.11 - Step 6: Final answer
x = 156,419.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.