Finding the Fourth Proportional to 317,636.10, 438,212.80 and 181,596.96
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Solution
The fourth proportional to 317,636.10, 438,212.80 and 181,596.96 is: 250,532.33
Step by Step Solution
- Step 1: Write the proportion equation
317,636.10 : 438,212.80 = 181,596.96 : x - Step 2: Convert to fraction form
317,636.10/438,212.80 = 181,596.96/x - Step 3: Cross multiply
317,636.10x = 438,212.80 × 181,596.96 - Step 4: Simplify right side
317,636.10x = 79,578,112,540.08 - Step 5: Solve for x
x = 79,578,112,540.08/317,636.10 - Step 6: Final answer
x = 250,532.33
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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.