Finding the Fourth Proportional to 352,129.20, 528,193.80 and 219,418.80
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Solution
The fourth proportional to 352,129.20, 528,193.80 and 219,418.80 is: 329,128.20
Step by Step Solution
- Step 1: Write the proportion equation
352,129.20 : 528,193.80 = 219,418.80 : x - Step 2: Convert to fraction form
352,129.20/528,193.80 = 219,418.80/x - Step 3: Cross multiply
352,129.20x = 528,193.80 × 219,418.80 - Step 4: Simplify right side
352,129.20x = 115,895,649,763.44 - Step 5: Solve for x
x = 115,895,649,763.44/352,129.20 - Step 6: Final answer
x = 329,128.20
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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.