Finding the Fourth Proportional to 274,240.09, 378,449.15 and 153,381.28
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Solution
The fourth proportional to 274,240.09, 378,449.15 and 153,381.28 is: 211,664.95
Step by Step Solution
- Step 1: Write the proportion equation
274,240.09 : 378,449.15 = 153,381.28 : x - Step 2: Convert to fraction form
274,240.09/378,449.15 = 153,381.28/x - Step 3: Cross multiply
274,240.09x = 378,449.15 × 153,381.28 - Step 4: Simplify right side
274,240.09x = 58,047,016,282.13 - Step 5: Solve for x
x = 58,047,016,282.13/274,240.09 - Step 6: Final answer
x = 211,664.95
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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.