Finding the Fourth Proportional to 274,189.10, 378,391.26 and 153,330.09
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Solution
The fourth proportional to 274,189.10, 378,391.26 and 153,330.09 is: 211,601.29
Step by Step Solution
- Step 1: Write the proportion equation
274,189.10 : 378,391.26 = 153,330.09 : x - Step 2: Convert to fraction form
274,189.10/378,391.26 = 153,330.09/x - Step 3: Cross multiply
274,189.10x = 378,391.26 × 153,330.09 - Step 4: Simplify right side
274,189.10x = 58,018,765,951.01 - Step 5: Solve for x
x = 58,018,765,951.01/274,189.10 - Step 6: Final answer
x = 211,601.29
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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.