Finding the Fourth Proportional to 352,135.20, 528,202.80 and 115,420.80
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Solution
The fourth proportional to 352,135.20, 528,202.80 and 115,420.80 is: 173,131.20
Step by Step Solution
- Step 1: Write the proportion equation
352,135.20 : 528,202.80 = 115,420.80 : x - Step 2: Convert to fraction form
352,135.20/528,202.80 = 115,420.80/x - Step 3: Cross multiply
352,135.20x = 528,202.80 × 115,420.80 - Step 4: Simplify right side
352,135.20x = 60,965,589,738.24 - Step 5: Solve for x
x = 60,965,589,738.24/352,135.20 - Step 6: Final answer
x = 173,131.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.