Finding the Fourth Proportional to 202,562.75, 279,536.60 and 113,138.75
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Solution
The fourth proportional to 202,562.75, 279,536.60 and 113,138.75 is: 156,131.48
Step by Step Solution
- Step 1: Write the proportion equation
202,562.75 : 279,536.60 = 113,138.75 : x - Step 2: Convert to fraction form
202,562.75/279,536.60 = 113,138.75/x - Step 3: Cross multiply
202,562.75x = 279,536.60 × 113,138.75 - Step 4: Simplify right side
202,562.75x = 31,626,421,503.25 - Step 5: Solve for x
x = 31,626,421,503.25/202,562.75 - Step 6: Final answer
x = 156,131.48
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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.