Finding the Fourth Proportional to 274,711.20, 412,139.70 and 97,199.70
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Solution
The fourth proportional to 274,711.20, 412,139.70 and 97,199.70 is: 145,825.34
Step by Step Solution
- Step 1: Write the proportion equation
274,711.20 : 412,139.70 = 97,199.70 : x - Step 2: Convert to fraction form
274,711.20/412,139.70 = 97,199.70/x - Step 3: Cross multiply
274,711.20x = 412,139.70 × 97,199.70 - Step 4: Simplify right side
274,711.20x = 40,059,855,198.09 - Step 5: Solve for x
x = 40,059,855,198.09/274,711.20 - Step 6: Final answer
x = 145,825.34
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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.