Finding the Fourth Proportional to 311,900.48, 430,422.69 and 168,660.52
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Solution
The fourth proportional to 311,900.48, 430,422.69 and 168,660.52 is: 232,751.53
Step by Step Solution
- Step 1: Write the proportion equation
311,900.48 : 430,422.69 = 168,660.52 : x - Step 2: Convert to fraction form
311,900.48/430,422.69 = 168,660.52/x - Step 3: Cross multiply
311,900.48x = 430,422.69 × 168,660.52 - Step 4: Simplify right side
311,900.48x = 72,595,314,715.20 - Step 5: Solve for x
x = 72,595,314,715.20/311,900.48 - Step 6: Final answer
x = 232,751.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.