Finding the Fourth Proportional to 261,509.36, 392,474.16 and 135,186.62
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Solution
The fourth proportional to 261,509.36, 392,474.16 and 135,186.62 is: 202,888.55
Step by Step Solution
- Step 1: Write the proportion equation
261,509.36 : 392,474.16 = 135,186.62 : x - Step 2: Convert to fraction form
261,509.36/392,474.16 = 135,186.62/x - Step 3: Cross multiply
261,509.36x = 392,474.16 × 135,186.62 - Step 4: Simplify right side
261,509.36x = 53,057,253,165.37 - Step 5: Solve for x
x = 53,057,253,165.37/261,509.36 - Step 6: Final answer
x = 202,888.55
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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.