Finding the Fourth Proportional to 138,436.88, 207,675.36 and 43,635.02
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Solution
The fourth proportional to 138,436.88, 207,675.36 and 43,635.02 is: 65,458.84
Step by Step Solution
- Step 1: Write the proportion equation
138,436.88 : 207,675.36 = 43,635.02 : x - Step 2: Convert to fraction form
138,436.88/207,675.36 = 43,635.02/x - Step 3: Cross multiply
138,436.88x = 207,675.36 × 43,635.02 - Step 4: Simplify right side
138,436.88x = 9,061,917,448.73 - Step 5: Solve for x
x = 9,061,917,448.73/138,436.88 - Step 6: Final answer
x = 65,458.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.