Finding the Fourth Proportional to 313,361.70, 432,444.16 and 170,121.62
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Solution
The fourth proportional to 313,361.70, 432,444.16 and 170,121.62 is: 234,770.56
Step by Step Solution
- Step 1: Write the proportion equation
313,361.70 : 432,444.16 = 170,121.62 : x - Step 2: Convert to fraction form
313,361.70/432,444.16 = 170,121.62/x - Step 3: Cross multiply
313,361.70x = 432,444.16 × 170,121.62 - Step 4: Simplify right side
313,361.70x = 73,568,101,058.74 - Step 5: Solve for x
x = 73,568,101,058.74/313,361.70 - Step 6: Final answer
x = 234,770.56
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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.