Finding the Fourth Proportional to 314,431.20, 471,214.80 and 201,765.60
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Solution
The fourth proportional to 314,431.20, 471,214.80 and 201,765.60 is: 302,371.19
Step by Step Solution
- Step 1: Write the proportion equation
314,431.20 : 471,214.80 = 201,765.60 : x - Step 2: Convert to fraction form
314,431.20/471,214.80 = 201,765.60/x - Step 3: Cross multiply
314,431.20x = 471,214.80 × 201,765.60 - Step 4: Simplify right side
314,431.20x = 95,074,936,850.88 - Step 5: Solve for x
x = 95,074,936,850.88/314,431.20 - Step 6: Final answer
x = 302,371.19
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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.