Finding the Fourth Proportional to 391,817.36, 587,725.92 and 181,340.48
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Solution
The fourth proportional to 391,817.36, 587,725.92 and 181,340.48 is: 272,010.66
Step by Step Solution
- Step 1: Write the proportion equation
391,817.36 : 587,725.92 = 181,340.48 : x - Step 2: Convert to fraction form
391,817.36/587,725.92 = 181,340.48/x - Step 3: Cross multiply
391,817.36x = 587,725.92 × 181,340.48 - Step 4: Simplify right side
391,817.36x = 106,578,500,441.24 - Step 5: Solve for x
x = 106,578,500,441.24/391,817.36 - Step 6: Final answer
x = 272,010.66
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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.