Finding the Fourth Proportional to 219,286.05, 302,611.47 and 122,491.26
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Solution
The fourth proportional to 219,286.05, 302,611.47 and 122,491.26 is: 169,036.11
Step by Step Solution
- Step 1: Write the proportion equation
219,286.05 : 302,611.47 = 122,491.26 : x - Step 2: Convert to fraction form
219,286.05/302,611.47 = 122,491.26/x - Step 3: Cross multiply
219,286.05x = 302,611.47 × 122,491.26 - Step 4: Simplify right side
219,286.05x = 37,067,260,250.75 - Step 5: Solve for x
x = 37,067,260,250.75/219,286.05 - Step 6: Final answer
x = 169,036.11
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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.