Finding the Fourth Proportional to 212,627.12, 293,438.70 and 117,133.80
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Solution
The fourth proportional to 212,627.12, 293,438.70 and 117,133.80 is: 161,651.96
Step by Step Solution
- Step 1: Write the proportion equation
212,627.12 : 293,438.70 = 117,133.80 : x - Step 2: Convert to fraction form
212,627.12/293,438.70 = 117,133.80/x - Step 3: Cross multiply
212,627.12x = 293,438.70 × 117,133.80 - Step 4: Simplify right side
212,627.12x = 34,371,589,998.06 - Step 5: Solve for x
x = 34,371,589,998.06/212,627.12 - Step 6: Final answer
x = 161,651.96
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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.