Finding the Fourth Proportional to 313,378.38, 432,450.36 and 170,135.33
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Solution
The fourth proportional to 313,378.38, 432,450.36 and 170,135.33 is: 234,780.34
Step by Step Solution
- Step 1: Write the proportion equation
313,378.38 : 432,450.36 = 170,135.33 : x - Step 2: Convert to fraction form
313,378.38/432,450.36 = 170,135.33/x - Step 3: Cross multiply
313,378.38x = 432,450.36 × 170,135.33 - Step 4: Simplify right side
313,378.38x = 73,575,082,544.97 - Step 5: Solve for x
x = 73,575,082,544.97/313,378.38 - Step 6: Final answer
x = 234,780.34
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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.