Finding the Fourth Proportional to 385,757.64, 532,297.62 and 215,964.36
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Solution
The fourth proportional to 385,757.64, 532,297.62 and 215,964.36 is: 298,003.99
Step by Step Solution
- Step 1: Write the proportion equation
385,757.64 : 532,297.62 = 215,964.36 : x - Step 2: Convert to fraction form
385,757.64/532,297.62 = 215,964.36/x - Step 3: Cross multiply
385,757.64x = 532,297.62 × 215,964.36 - Step 4: Simplify right side
385,757.64x = 114,957,314,832.82 - Step 5: Solve for x
x = 114,957,314,832.82/385,757.64 - Step 6: Final answer
x = 298,003.99
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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.