Finding the Fourth Proportional to 313,832.06, 470,864.74 and 145,433.06
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Solution
The fourth proportional to 313,832.06, 470,864.74 and 145,433.06 is: 218,203.65
Step by Step Solution
- Step 1: Write the proportion equation
313,832.06 : 470,864.74 = 145,433.06 : x - Step 2: Convert to fraction form
313,832.06/470,864.74 = 145,433.06/x - Step 3: Cross multiply
313,832.06x = 470,864.74 × 145,433.06 - Step 4: Simplify right side
313,832.06x = 68,479,299,984.30 - Step 5: Solve for x
x = 68,479,299,984.30/313,832.06 - Step 6: Final answer
x = 218,203.65
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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.