Finding the Fourth Proportional to 211,043.36, 316,581.44 and 61,286.08
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Solution
The fourth proportional to 211,043.36, 316,581.44 and 61,286.08 is: 91,933.88
Step by Step Solution
- Step 1: Write the proportion equation
211,043.36 : 316,581.44 = 61,286.08 : x - Step 2: Convert to fraction form
211,043.36/316,581.44 = 61,286.08/x - Step 3: Cross multiply
211,043.36x = 316,581.44 × 61,286.08 - Step 4: Simplify right side
211,043.36x = 19,402,035,458.36 - Step 5: Solve for x
x = 19,402,035,458.36/211,043.36 - Step 6: Final answer
x = 91,933.88
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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.