Finding the Fourth Proportional to 324,135.60, 486,203.40 and 205,891.80
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Solution
The fourth proportional to 324,135.60, 486,203.40 and 205,891.80 is: 308,837.70
Step by Step Solution
- Step 1: Write the proportion equation
324,135.60 : 486,203.40 = 205,891.80 : x - Step 2: Convert to fraction form
324,135.60/486,203.40 = 205,891.80/x - Step 3: Cross multiply
324,135.60x = 486,203.40 × 205,891.80 - Step 4: Simplify right side
324,135.60x = 100,105,293,192.12 - Step 5: Solve for x
x = 100,105,293,192.12/324,135.60 - Step 6: Final answer
x = 308,837.70
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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.