Finding the Fourth Proportional to 389,284.92, 537,213.24 and 219,519.09
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Solution
The fourth proportional to 389,284.92, 537,213.24 and 219,519.09 is: 302,936.37
Step by Step Solution
- Step 1: Write the proportion equation
389,284.92 : 537,213.24 = 219,519.09 : x - Step 2: Convert to fraction form
389,284.92/537,213.24 = 219,519.09/x - Step 3: Cross multiply
389,284.92x = 537,213.24 × 219,519.09 - Step 4: Simplify right side
389,284.92x = 117,928,561,580.75 - Step 5: Solve for x
x = 117,928,561,580.75/389,284.92 - Step 6: Final answer
x = 302,936.37
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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.