Finding the Fourth Proportional to 204,689.52, 307,321.20 and 104,921.28
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Solution
The fourth proportional to 204,689.52, 307,321.20 and 104,921.28 is: 157,528.99
Step by Step Solution
- Step 1: Write the proportion equation
204,689.52 : 307,321.20 = 104,921.28 : x - Step 2: Convert to fraction form
204,689.52/307,321.20 = 104,921.28/x - Step 3: Cross multiply
204,689.52x = 307,321.20 × 104,921.28 - Step 4: Simplify right side
204,689.52x = 32,244,533,675.14 - Step 5: Solve for x
x = 32,244,533,675.14/204,689.52 - Step 6: Final answer
x = 157,528.99
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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.