Finding the Fourth Proportional to 212,799.62, 293,659.80 and 117,315.20
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Solution
The fourth proportional to 212,799.62, 293,659.80 and 117,315.20 is: 161,892.95
Step by Step Solution
- Step 1: Write the proportion equation
212,799.62 : 293,659.80 = 117,315.20 : x - Step 2: Convert to fraction form
212,799.62/293,659.80 = 117,315.20/x - Step 3: Cross multiply
212,799.62x = 293,659.80 × 117,315.20 - Step 4: Simplify right side
212,799.62x = 34,450,758,168.96 - Step 5: Solve for x
x = 34,450,758,168.96/212,799.62 - Step 6: Final answer
x = 161,892.95
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1.5x scale
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.