Finding the Fourth Proportional to 210,251.75, 315,516.91 and 115,548.06
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Solution
The fourth proportional to 210,251.75, 315,516.91 and 115,548.06 is: 173,398.65
Step by Step Solution
- Step 1: Write the proportion equation
210,251.75 : 315,516.91 = 115,548.06 : x - Step 2: Convert to fraction form
210,251.75/315,516.91 = 115,548.06/x - Step 3: Cross multiply
210,251.75x = 315,516.91 × 115,548.06 - Step 4: Simplify right side
210,251.75x = 36,457,367,958.67 - Step 5: Solve for x
x = 36,457,367,958.67/210,251.75 - Step 6: Final answer
x = 173,398.65
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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.