Finding the Fourth Proportional to 312,125.11, 430,573.96 and 189,584.88
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Solution
The fourth proportional to 312,125.11, 430,573.96 and 189,584.88 is: 261,530.75
Step by Step Solution
- Step 1: Write the proportion equation
312,125.11 : 430,573.96 = 189,584.88 : x - Step 2: Convert to fraction form
312,125.11/430,573.96 = 189,584.88/x - Step 3: Cross multiply
312,125.11x = 430,573.96 × 189,584.88 - Step 4: Simplify right side
312,125.11x = 81,630,313,164.50 - Step 5: Solve for x
x = 81,630,313,164.50/312,125.11 - Step 6: Final answer
x = 261,530.75
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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.