Finding the Fourth Proportional to 415,918.36, 573,703.08 and 272,687.68
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Solution
The fourth proportional to 415,918.36, 573,703.08 and 272,687.68 is: 376,135.74
Step by Step Solution
- Step 1: Write the proportion equation
415,918.36 : 573,703.08 = 272,687.68 : x - Step 2: Convert to fraction form
415,918.36/573,703.08 = 272,687.68/x - Step 3: Cross multiply
415,918.36x = 573,703.08 × 272,687.68 - Step 4: Simplify right side
415,918.36x = 156,441,761,894.05 - Step 5: Solve for x
x = 156,441,761,894.05/415,918.36 - Step 6: Final answer
x = 376,135.74
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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.