Finding the Fourth Proportional to 345,805.70, 477,215.49 and 194,902.70
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Solution
The fourth proportional to 345,805.70, 477,215.49 and 194,902.70 is: 268,967.77
Step by Step Solution
- Step 1: Write the proportion equation
345,805.70 : 477,215.49 = 194,902.70 : x - Step 2: Convert to fraction form
345,805.70/477,215.49 = 194,902.70/x - Step 3: Cross multiply
345,805.70x = 477,215.49 × 194,902.70 - Step 4: Simplify right side
345,805.70x = 93,010,585,096.75 - Step 5: Solve for x
x = 93,010,585,096.75/345,805.70 - Step 6: Final answer
x = 268,967.77
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1.5x scale
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.