Finding the Fourth Proportional to 378,858.19, 568,393.88 and 165,644.82
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Solution
The fourth proportional to 378,858.19, 568,393.88 and 165,644.82 is: 248,513.84
Step by Step Solution
- Step 1: Write the proportion equation
378,858.19 : 568,393.88 = 165,644.82 : x - Step 2: Convert to fraction form
378,858.19/568,393.88 = 165,644.82/x - Step 3: Cross multiply
378,858.19x = 568,393.88 × 165,644.82 - Step 4: Simplify right side
378,858.19x = 94,151,501,113.48 - Step 5: Solve for x
x = 94,151,501,113.48/378,858.19 - Step 6: Final answer
x = 248,513.84
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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.