Finding the Fourth Proportional to 260,071.20, 389,450.70 and 207,583.20
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Solution
The fourth proportional to 260,071.20, 389,450.70 and 207,583.20 is: 310,851.12
Step by Step Solution
- Step 1: Write the proportion equation
260,071.20 : 389,450.70 = 207,583.20 : x - Step 2: Convert to fraction form
260,071.20/389,450.70 = 207,583.20/x - Step 3: Cross multiply
260,071.20x = 389,450.70 × 207,583.20 - Step 4: Simplify right side
260,071.20x = 80,843,422,548.24 - Step 5: Solve for x
x = 80,843,422,548.24/260,071.20 - Step 6: Final answer
x = 310,851.12
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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.