Finding the Fourth Proportional to 212,696.11, 293,518.14 and 120,814.75
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Solution
The fourth proportional to 212,696.11, 293,518.14 and 120,814.75 is: 166,722.94
Step by Step Solution
- Step 1: Write the proportion equation
212,696.11 : 293,518.14 = 120,814.75 : x - Step 2: Convert to fraction form
212,696.11/293,518.14 = 120,814.75/x - Step 3: Cross multiply
212,696.11x = 293,518.14 × 120,814.75 - Step 4: Simplify right side
212,696.11x = 35,461,319,236.97 - Step 5: Solve for x
x = 35,461,319,236.97/212,696.11 - Step 6: Final answer
x = 166,722.94
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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.