Finding the Fourth Proportional to 313,920.12, 433,207.56 and 170,680.20
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Solution
The fourth proportional to 313,920.12, 433,207.56 and 170,680.20 is: 235,537.48
Step by Step Solution
- Step 1: Write the proportion equation
313,920.12 : 433,207.56 = 170,680.20 : x - Step 2: Convert to fraction form
313,920.12/433,207.56 = 170,680.20/x - Step 3: Cross multiply
313,920.12x = 433,207.56 × 170,680.20 - Step 4: Simplify right side
313,920.12x = 73,939,952,982.31 - Step 5: Solve for x
x = 73,939,952,982.31/313,920.12 - Step 6: Final answer
x = 235,537.48
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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.