Finding the Fourth Proportional to 202,523.40, 279,148.95 and 143,606.70
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Solution
The fourth proportional to 202,523.40, 279,148.95 and 143,606.70 is: 197,940.88
Step by Step Solution
- Step 1: Write the proportion equation
202,523.40 : 279,148.95 = 143,606.70 : x - Step 2: Convert to fraction form
202,523.40/279,148.95 = 143,606.70/x - Step 3: Cross multiply
202,523.40x = 279,148.95 × 143,606.70 - Step 4: Simplify right side
202,523.40x = 40,087,659,517.97 - Step 5: Solve for x
x = 40,087,659,517.97/202,523.40 - Step 6: Final answer
x = 197,940.88
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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.