Finding the Fourth Proportional to 279,115.36, 385,288.66 and 197,868.26
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Solution
The fourth proportional to 279,115.36, 385,288.66 and 197,868.26 is: 273,135.80
Step by Step Solution
- Step 1: Write the proportion equation
279,115.36 : 385,288.66 = 197,868.26 : x - Step 2: Convert to fraction form
279,115.36/385,288.66 = 197,868.26/x - Step 3: Cross multiply
279,115.36x = 385,288.66 × 197,868.26 - Step 4: Simplify right side
279,115.36x = 76,236,396,751.93 - Step 5: Solve for x
x = 76,236,396,751.93/279,115.36 - Step 6: Final answer
x = 273,135.80
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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.