Finding the Fourth Proportional to 212,847.75, 293,731.11 and 117,352.80
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Solution
The fourth proportional to 212,847.75, 293,731.11 and 117,352.80 is: 161,947.53
Step by Step Solution
- Step 1: Write the proportion equation
212,847.75 : 293,731.11 = 117,352.80 : x - Step 2: Convert to fraction form
212,847.75/293,731.11 = 117,352.80/x - Step 3: Cross multiply
212,847.75x = 293,731.11 × 117,352.80 - Step 4: Simplify right side
212,847.75x = 34,470,168,205.61 - Step 5: Solve for x
x = 34,470,168,205.61/212,847.75 - Step 6: Final answer
x = 161,947.53
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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.