Finding the Fourth Proportional to 324,415.20, 486,291.60 and 219,244.80
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Solution
The fourth proportional to 324,415.20, 486,291.60 and 219,244.80 is: 328,643.37
Step by Step Solution
- Step 1: Write the proportion equation
324,415.20 : 486,291.60 = 219,244.80 : x - Step 2: Convert to fraction form
324,415.20/486,291.60 = 219,244.80/x - Step 3: Cross multiply
324,415.20x = 486,291.60 × 219,244.80 - Step 4: Simplify right side
324,415.20x = 106,616,904,583.68 - Step 5: Solve for x
x = 106,616,904,583.68/324,415.20 - Step 6: Final answer
x = 328,643.37
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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.