Finding the Fourth Proportional to 191,212.38, 263,842.55 and 106,330.06
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Solution
The fourth proportional to 191,212.38, 263,842.55 and 106,330.06 is: 146,718.50
Step by Step Solution
- Step 1: Write the proportion equation
191,212.38 : 263,842.55 = 106,330.06 : x - Step 2: Convert to fraction form
191,212.38/263,842.55 = 106,330.06/x - Step 3: Cross multiply
191,212.38x = 263,842.55 × 106,330.06 - Step 4: Simplify right side
191,212.38x = 28,054,394,172.05 - Step 5: Solve for x
x = 28,054,394,172.05/191,212.38 - Step 6: Final answer
x = 146,718.50
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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.