Finding the Fourth Proportional to 378,434.88, 522,228.96 and 208,668.96
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Solution
The fourth proportional to 378,434.88, 522,228.96 and 208,668.96 is: 287,957.00
Step by Step Solution
- Step 1: Write the proportion equation
378,434.88 : 522,228.96 = 208,668.96 : x - Step 2: Convert to fraction form
378,434.88/522,228.96 = 208,668.96/x - Step 3: Cross multiply
378,434.88x = 522,228.96 × 208,668.96 - Step 4: Simplify right side
378,434.88x = 108,972,973,965.08 - Step 5: Solve for x
x = 108,972,973,965.08/378,434.88 - Step 6: Final answer
x = 287,957.00
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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.