Finding the Fourth Proportional to 190,765.28, 263,257.11 and 119,186.82
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Solution
The fourth proportional to 190,765.28, 263,257.11 and 119,186.82 is: 164,478.45
Step by Step Solution
- Step 1: Write the proportion equation
190,765.28 : 263,257.11 = 119,186.82 : x - Step 2: Convert to fraction form
190,765.28/263,257.11 = 119,186.82/x - Step 3: Cross multiply
190,765.28x = 263,257.11 × 119,186.82 - Step 4: Simplify right side
190,765.28x = 31,376,775,871.07 - Step 5: Solve for x
x = 31,376,775,871.07/190,765.28 - Step 6: Final answer
x = 164,478.45
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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.