Finding the Fourth Proportional to 222,747.31, 307,391.11 and 120,776.15
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Solution
The fourth proportional to 222,747.31, 307,391.11 and 120,776.15 is: 166,670.99
Step by Step Solution
- Step 1: Write the proportion equation
222,747.31 : 307,391.11 = 120,776.15 : x - Step 2: Convert to fraction form
222,747.31/307,391.11 = 120,776.15/x - Step 3: Cross multiply
222,747.31x = 307,391.11 × 120,776.15 - Step 4: Simplify right side
222,747.31x = 37,125,514,810.03 - Step 5: Solve for x
x = 37,125,514,810.03/222,747.31 - Step 6: Final answer
x = 166,670.99
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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.