Finding the Fourth Proportional to 281,153.10, 421,263.09 and 197,872.14
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Solution
The fourth proportional to 281,153.10, 421,263.09 and 197,872.14 is: 296,479.85
Step by Step Solution
- Step 1: Write the proportion equation
281,153.10 : 421,263.09 = 197,872.14 : x - Step 2: Convert to fraction form
281,153.10/421,263.09 = 197,872.14/x - Step 3: Cross multiply
281,153.10x = 421,263.09 × 197,872.14 - Step 4: Simplify right side
281,153.10x = 83,356,229,121.31 - Step 5: Solve for x
x = 83,356,229,121.31/281,153.10 - Step 6: Final answer
x = 296,479.85
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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.