Finding the Fourth Proportional to 147,634.10, 221,451.15 and 136,229.30
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Solution
The fourth proportional to 147,634.10, 221,451.15 and 136,229.30 is: 204,343.95
Step by Step Solution
- Step 1: Write the proportion equation
147,634.10 : 221,451.15 = 136,229.30 : x - Step 2: Convert to fraction form
147,634.10/221,451.15 = 136,229.30/x - Step 3: Cross multiply
147,634.10x = 221,451.15 × 136,229.30 - Step 4: Simplify right side
147,634.10x = 30,168,135,148.70 - Step 5: Solve for x
x = 30,168,135,148.70/147,634.10 - Step 6: Final answer
x = 204,343.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.