Finding the Fourth Proportional to 313,629.12, 470,440.80 and 126,637.92
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Solution
The fourth proportional to 313,629.12, 470,440.80 and 126,637.92 is: 189,955.72
Step by Step Solution
- Step 1: Write the proportion equation
313,629.12 : 470,440.80 = 126,637.92 : x - Step 2: Convert to fraction form
313,629.12/470,440.80 = 126,637.92/x - Step 3: Cross multiply
313,629.12x = 470,440.80 × 126,637.92 - Step 4: Simplify right side
313,629.12x = 59,575,644,395.14 - Step 5: Solve for x
x = 59,575,644,395.14/313,629.12 - Step 6: Final answer
x = 189,955.72
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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.