Finding the Fourth Proportional to 231,888.36, 347,854.30 and 71,965.80
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Solution
The fourth proportional to 231,888.36, 347,854.30 and 71,965.80 is: 107,955.45
Step by Step Solution
- Step 1: Write the proportion equation
231,888.36 : 347,854.30 = 71,965.80 : x - Step 2: Convert to fraction form
231,888.36/347,854.30 = 71,965.80/x - Step 3: Cross multiply
231,888.36x = 347,854.30 × 71,965.80 - Step 4: Simplify right side
231,888.36x = 25,033,612,982.94 - Step 5: Solve for x
x = 25,033,612,982.94/231,888.36 - Step 6: Final answer
x = 107,955.45
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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.