Finding the Fourth Proportional to 324,272.20, 486,149.10 and 137,129.80
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Solution
The fourth proportional to 324,272.20, 486,149.10 and 137,129.80 is: 205,585.09
Step by Step Solution
- Step 1: Write the proportion equation
324,272.20 : 486,149.10 = 137,129.80 : x - Step 2: Convert to fraction form
324,272.20/486,149.10 = 137,129.80/x - Step 3: Cross multiply
324,272.20x = 486,149.10 × 137,129.80 - Step 4: Simplify right side
324,272.20x = 66,665,528,853.18 - Step 5: Solve for x
x = 66,665,528,853.18/324,272.20 - Step 6: Final answer
x = 205,585.09
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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.