Finding the Fourth Proportional to 202,397.18, 279,191.02 and 130,777.20
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Solution
The fourth proportional to 202,397.18, 279,191.02 and 130,777.20 is: 180,396.88
Step by Step Solution
- Step 1: Write the proportion equation
202,397.18 : 279,191.02 = 130,777.20 : x - Step 2: Convert to fraction form
202,397.18/279,191.02 = 130,777.20/x - Step 3: Cross multiply
202,397.18x = 279,191.02 × 130,777.20 - Step 4: Simplify right side
202,397.18x = 36,511,819,860.74 - Step 5: Solve for x
x = 36,511,819,860.74/202,397.18 - Step 6: Final answer
x = 180,396.88
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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.