Finding the Fourth Proportional to 411,201.20, 615,880.20 and 245,313.20
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Solution
The fourth proportional to 411,201.20, 615,880.20 and 245,313.20 is: 367,419.99
Step by Step Solution
- Step 1: Write the proportion equation
411,201.20 : 615,880.20 = 245,313.20 : x - Step 2: Convert to fraction form
411,201.20/615,880.20 = 245,313.20/x - Step 3: Cross multiply
411,201.20x = 615,880.20 × 245,313.20 - Step 4: Simplify right side
411,201.20x = 151,083,542,678.64 - Step 5: Solve for x
x = 151,083,542,678.64/411,201.20 - Step 6: Final answer
x = 367,419.99
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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.