Finding the Fourth Proportional to 326,203.70, 450,161.90 and 190,331.06
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Solution
The fourth proportional to 326,203.70, 450,161.90 and 190,331.06 is: 262,657.32
Step by Step Solution
- Step 1: Write the proportion equation
326,203.70 : 450,161.90 = 190,331.06 : x - Step 2: Convert to fraction form
326,203.70/450,161.90 = 190,331.06/x - Step 3: Cross multiply
326,203.70x = 450,161.90 × 190,331.06 - Step 4: Simplify right side
326,203.70x = 85,679,788,396.15 - Step 5: Solve for x
x = 85,679,788,396.15/326,203.70 - Step 6: Final answer
x = 262,657.32
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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.