Finding the Fourth Proportional to 311,735.20, 430,193.92 and 168,494.88
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Solution
The fourth proportional to 311,735.20, 430,193.92 and 168,494.88 is: 232,522.58
Step by Step Solution
- Step 1: Write the proportion equation
311,735.20 : 430,193.92 = 168,494.88 : x - Step 2: Convert to fraction form
311,735.20/430,193.92 = 168,494.88/x - Step 3: Cross multiply
311,735.20x = 430,193.92 × 168,494.88 - Step 4: Simplify right side
311,735.20x = 72,485,472,927.13 - Step 5: Solve for x
x = 72,485,472,927.13/311,735.20 - Step 6: Final answer
x = 232,522.58
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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.