Finding the Fourth Proportional to 212,107.28, 317,468.61 and 155,932.52
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Solution
The fourth proportional to 212,107.28, 317,468.61 and 155,932.52 is: 233,389.82
Step by Step Solution
- Step 1: Write the proportion equation
212,107.28 : 317,468.61 = 155,932.52 : x - Step 2: Convert to fraction form
212,107.28/317,468.61 = 155,932.52/x - Step 3: Cross multiply
212,107.28x = 317,468.61 × 155,932.52 - Step 4: Simplify right side
212,107.28x = 49,503,680,378.20 - Step 5: Solve for x
x = 49,503,680,378.20/212,107.28 - Step 6: Final answer
x = 233,389.82
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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.