Finding the Fourth Proportional to 391,118.25, 586,768.90 and 121,232.28
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Solution
The fourth proportional to 391,118.25, 586,768.90 and 121,232.28 is: 181,876.79
Step by Step Solution
- Step 1: Write the proportion equation
391,118.25 : 586,768.90 = 121,232.28 : x - Step 2: Convert to fraction form
391,118.25/586,768.90 = 121,232.28/x - Step 3: Cross multiply
391,118.25x = 586,768.90 × 121,232.28 - Step 4: Simplify right side
391,118.25x = 71,135,331,580.09 - Step 5: Solve for x
x = 71,135,331,580.09/391,118.25 - Step 6: Final answer
x = 181,876.79
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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.