Finding the Fourth Proportional to 626,082.41, 939,198.49 and 221,190.80
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Solution
The fourth proportional to 626,082.41, 939,198.49 and 221,190.80 is: 331,812.65
Step by Step Solution
- Step 1: Write the proportion equation
626,082.41 : 939,198.49 = 221,190.80 : x - Step 2: Convert to fraction form
626,082.41/939,198.49 = 221,190.80/x - Step 3: Cross multiply
626,082.41x = 939,198.49 × 221,190.80 - Step 4: Simplify right side
626,082.41x = 207,742,066,640.11 - Step 5: Solve for x
x = 207,742,066,640.11/626,082.41 - Step 6: Final answer
x = 331,812.65
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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.