Finding the Fourth Proportional to 239,112.01, 329,972.09 and 131,679.75
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Solution
The fourth proportional to 239,112.01, 329,972.09 and 131,679.75 is: 181,716.69
Step by Step Solution
- Step 1: Write the proportion equation
239,112.01 : 329,972.09 = 131,679.75 : x - Step 2: Convert to fraction form
239,112.01/329,972.09 = 131,679.75/x - Step 3: Cross multiply
239,112.01x = 329,972.09 × 131,679.75 - Step 4: Simplify right side
239,112.01x = 43,450,642,318.18 - Step 5: Solve for x
x = 43,450,642,318.18/239,112.01 - Step 6: Final answer
x = 181,716.69
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1.5x scale
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.