Finding the Fourth Proportional to 313,361.08, 432,438.30 and 170,120.92
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Solution
The fourth proportional to 313,361.08, 432,438.30 and 170,120.92 is: 234,766.87
Step by Step Solution
- Step 1: Write the proportion equation
313,361.08 : 432,438.30 = 170,120.92 : x - Step 2: Convert to fraction form
313,361.08/432,438.30 = 170,120.92/x - Step 3: Cross multiply
313,361.08x = 432,438.30 × 170,120.92 - Step 4: Simplify right side
313,361.08x = 73,566,801,439.24 - Step 5: Solve for x
x = 73,566,801,439.24/313,361.08 - Step 6: Final answer
x = 234,766.87
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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.