Finding the Fourth Proportional to 191,203.81, 263,850.42 and 106,319.05
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Solution
The fourth proportional to 191,203.81, 263,850.42 and 106,319.05 is: 146,714.26
Step by Step Solution
- Step 1: Write the proportion equation
191,203.81 : 263,850.42 = 106,319.05 : x - Step 2: Convert to fraction form
191,203.81/263,850.42 = 106,319.05/x - Step 3: Cross multiply
191,203.81x = 263,850.42 × 106,319.05 - Step 4: Simplify right side
191,203.81x = 28,052,325,996.50 - Step 5: Solve for x
x = 28,052,325,996.50/191,203.81 - Step 6: Final answer
x = 146,714.26
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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.