Finding the Fourth Proportional to 274,135.20, 411,202.80 and 211,850.40
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Solution
The fourth proportional to 274,135.20, 411,202.80 and 211,850.40 is: 317,775.60
Step by Step Solution
- Step 1: Write the proportion equation
274,135.20 : 411,202.80 = 211,850.40 : x - Step 2: Convert to fraction form
274,135.20/411,202.80 = 211,850.40/x - Step 3: Cross multiply
274,135.20x = 411,202.80 × 211,850.40 - Step 4: Simplify right side
274,135.20x = 87,113,477,661.12 - Step 5: Solve for x
x = 87,113,477,661.12/274,135.20 - Step 6: Final answer
x = 317,775.60
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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.