Finding the Fourth Proportional to 221,034.09, 305,027.06 and 120,432.09
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Solution
The fourth proportional to 221,034.09, 305,027.06 and 120,432.09 is: 166,196.29
Step by Step Solution
- Step 1: Write the proportion equation
221,034.09 : 305,027.06 = 120,432.09 : x - Step 2: Convert to fraction form
221,034.09/305,027.06 = 120,432.09/x - Step 3: Cross multiply
221,034.09x = 305,027.06 × 120,432.09 - Step 4: Simplify right side
221,034.09x = 36,735,046,884.05 - Step 5: Solve for x
x = 36,735,046,884.05/221,034.09 - Step 6: Final answer
x = 166,196.29
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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.