Finding the Fourth Proportional to 326,845.80, 490,210.34 and 86,961.08
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Solution
The fourth proportional to 326,845.80, 490,210.34 and 86,961.08 is: 130,426.09
Step by Step Solution
- Step 1: Write the proportion equation
326,845.80 : 490,210.34 = 86,961.08 : x - Step 2: Convert to fraction form
326,845.80/490,210.34 = 86,961.08/x - Step 3: Cross multiply
326,845.80x = 490,210.34 × 86,961.08 - Step 4: Simplify right side
326,845.80x = 42,629,220,593.57 - Step 5: Solve for x
x = 42,629,220,593.57/326,845.80 - Step 6: Final answer
x = 130,426.09
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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.