Finding the Fourth Proportional to 240,072.36, 331,290.91 and 132,640.09
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Solution
The fourth proportional to 240,072.36, 331,290.91 and 132,640.09 is: 183,038.38
Step by Step Solution
- Step 1: Write the proportion equation
240,072.36 : 331,290.91 = 132,640.09 : x - Step 2: Convert to fraction form
240,072.36/331,290.91 = 132,640.09/x - Step 3: Cross multiply
240,072.36x = 331,290.91 × 132,640.09 - Step 4: Simplify right side
240,072.36x = 43,942,456,118.58 - Step 5: Solve for x
x = 43,942,456,118.58/240,072.36 - Step 6: Final answer
x = 183,038.38
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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.