Finding the Fourth Proportional to 313,529.12, 470,145.36 and 121,493.44
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Solution
The fourth proportional to 313,529.12, 470,145.36 and 121,493.44 is: 182,182.69
Step by Step Solution
- Step 1: Write the proportion equation
313,529.12 : 470,145.36 = 121,493.44 : x - Step 2: Convert to fraction form
313,529.12/470,145.36 = 121,493.44/x - Step 3: Cross multiply
313,529.12x = 470,145.36 × 121,493.44 - Step 4: Simplify right side
313,529.12x = 57,119,577,086.44 - Step 5: Solve for x
x = 57,119,577,086.44/313,529.12 - Step 6: Final answer
x = 182,182.69
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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.