Finding the Fourth Proportional to 313,868.06, 470,918.74 and 145,469.06
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Solution
The fourth proportional to 313,868.06, 470,918.74 and 145,469.06 is: 218,257.65
Step by Step Solution
- Step 1: Write the proportion equation
313,868.06 : 470,918.74 = 145,469.06 : x - Step 2: Convert to fraction form
313,868.06/470,918.74 = 145,469.06/x - Step 3: Cross multiply
313,868.06x = 470,918.74 × 145,469.06 - Step 4: Simplify right side
313,868.06x = 68,504,106,444.18 - Step 5: Solve for x
x = 68,504,106,444.18/313,868.06 - Step 6: Final answer
x = 218,257.65
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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.