Finding the Fourth Proportional to 307,850.40, 461,338.20 and 214,246.80
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Solution
The fourth proportional to 307,850.40, 461,338.20 and 214,246.80 is: 321,065.79
Step by Step Solution
- Step 1: Write the proportion equation
307,850.40 : 461,338.20 = 214,246.80 : x - Step 2: Convert to fraction form
307,850.40/461,338.20 = 214,246.80/x - Step 3: Cross multiply
307,850.40x = 461,338.20 × 214,246.80 - Step 4: Simplify right side
307,850.40x = 98,840,233,067.76 - Step 5: Solve for x
x = 98,840,233,067.76/307,850.40 - Step 6: Final answer
x = 321,065.79
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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.